Fanfic / Unexpected Encounters

Fanfic cover.^note From left to right: Haida & Retsuko, Nick Wilde, Judy Hopps & Jack Savage, and Amy Rose & Sonic The Hedgehog.

"With the arrival of Nick, Judy, Jack and Finnick to Japan for a vacation, they will find some strange emeralds that will cause them to meet beings from a different planet known as Mobius and in the process they will meet a red panda who sings death metal. Main Couples: Nick x Judy x Jack ( Wildehopps / Savagehopps / Wildehoppsavage ), Haida x Retsuko ( Haidsuko ), Ookami x Fenneko ( Ookanneko ), Sonic x Amy ( Sonamy ), Tails x Cosmo ( Tailsmo ), Knuckles x Tikal ( Knuxikal ). Other Couples: Stu x Bonnie, Bogo x Clawhauser, Komiya x Tsunoda, Manumaru x Resasuke, Anai x Hakumi, Shadow x Rouge ( Shadouge ). Ratchet & Clank Couples: Alister x Ratchet. Star Fox Couples: Falco x Fox, Peppy x Slippy. Happy Tree Friends Couples: Disco Bear x Pop, Flippy x Flaky, Sneaky x Mouse Ka-Boom, Truffles x Lammy, Russell x Mime. Kaiketsu Zorori Couples: Arthur x Elzie, Roger x Milly. Beastars Couples: Legoshi x Jack, Collot x Voss, Durham x Miguno. Note: Although this is a crossover between Zootopia, Aggretsuko, and Sonic; characters from Beastars, Star Fox, Kaiketsu Zorori, Happy Tree Friends, and Ratchet & Clank will appear frequently throughout the story."

— Description of the fanfic in archiveofourown.org.

Unexpected Encounters is a crossover fanfiction multi-fandom by Ameth18. This fanfic is primarily a crossover between Zootopia, Aggretsuko, and Sonic X with recurring appearances of characters from other sagas such as Beastars, Star Fox, Kaiketsu Zorori, Happy Tree Friends, and Ratchet & Clank; and with the presence of some fan characters.

As an additional note, although the fanfic is based on Sonic X, it will also refer to Sonic Underground, since according to the author's canon Sonic Underground occurred 4 years before the events of Sonic X.

These fanfics can be found in English and Spanish on fanfiction.net and Archive Of Our Own.

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Some chapters of this fanfic:

1. Families and Children: Presentation of the main characters of Zootopia and Aggretsuko: Nick, Judy, Jack, Finnick, Retsuko, Fenneko, Haida, Ookami, Washimi, Gori, and the children. Cameo of Sonic X characters.
2. Aggretopia - New Friends: First meeting between the characters of Zootopia and Aggretsuko. First appearance of the main villains from Sonic X: Dr. Eggman, Decoe, Bocoe and Bokkun.
3. Songgretopia - The Heroes: The characters of Zootopia and Aggretsuko meet the heroes of Sonic X: Sonic, Amy, Tails, Cosmo, Knuckles, Tikal and their children.
4. Questions And Answers: The characters of Sonic X respond to the doubts of the characters of Zootopia and Aggretsuko about how they came to that universe and what their mission is.
5. A New Refuge: The characters of Sonic X find Gori's apartment as a temporary home, meanwhile they try to agree with the characters of Aggretsuko and Zootopia on some matters.
6. Aggretopia - Call From Acquaintances: The characters of Aggretsuko and Zootopia speak with their relatives and / or acquaintances who are concerned after having seen them in the news during the attack of Dr. Eggman.
7. Songgretopia - End Of The Day: The characters of Zootopia and Aggretsuko are going to talk to the police about the events that occurred. After that, the characters of Zootopia, Aggretsuko and Sonic prepare to rest after a hectic day.
8. The Search (Part 1): Judy, Retsuko, and Fenneko search the city and find Ratchet, Clank, and Alister Azimuth.
9. The Search (Part 2): Nick, Haida, and Ookami search the city and find Fox McCloud, Falco Lombardi, Slippy Toad, Peppy Hare, ROB 64, Wolf O'Donnell, Leon Powalski and Panther Caroso.
10. The Search (Part 3): Washimi and Gori search the city and find Disco Bear, Pop, Cub, Flippy, Flaky, Sneaky, Mouse Ka-Boom, Truffles, Lammy, Mr. Pickles, Russell, Mime and their children.
11. The Search (Part 4): Finnick search the city and find Zorori, Ishishi, Noshishi.
12. The Search (Part 5): Sonic, Amy, Tails, Cosmo, Knuckles, Tikal, and Jack head out to find the master emerald.
13. The Search (Part 6): Continuation of the previous chapter where finally Sonic, Amy, Tails, Cosmo, Knuckles, Tikal and Jack find and recover the master emeralds.
14. Songgretopia - Children's Time: The children of the characters have a fun time during the absence of their parents, honorary uncle and honorary aunts.
15. Sontopia - Visit to the Agency and Memories of the Past: Sonic, Amy, Tails, Cosmo, Knuckles and Tikal first arrive at the agency Jack works for and meet his boss for first time. On the other hand it is revealed how Bogo and Clawhauser began their relationship one year earlier.
16. Surveillance and Reunions: Skye watches over Nick's mother and Judy's parents to prevent them from leaving Zootopia and going to Japan. On the other hand, the characters of Zootopia, Aggretsuko and Sonic meet after having finished their searches.
17. Leaving Zootopia and fake book club: Bogo, Clawhauser, Shadow, Rouge, Rutan, Silver and Jewel arrive at the Zootopia airport and finally leave the city for Japan, meanwhile Retsuko tries to hide what she is doing from her mother and grandmother and cover it up with a a fake books club.
18. Back to Work: After everything that happened on the weekend Retsuko, Fenneko, Haida and Ookami return to work where they will find out about the addition of new interns to the accounting area.
19. Noon at the Work: Lunch time at Carrier Man Trading Co., Ltd where Retsuko, Fenneko, Haida and Ookami are resting, interacting for the first time with Legoshi, Louis and Jack. Meanwhile, Nick, Judy, Jack Savage, Finnick, and the kids take a walk around town.
20. Meeting at the Tokyo Tower: Nick, Judy, and Jack meet Haru and Juno at the Tokyo Tower and learn various things about the universe from them.
21. Encounter with a bodyguard: Sonic and his friends meet Gouhin thanks to the help of Jack Savage's boss.
22. The end of another day: The Aggretusko characters have finally got a chance to speak to the missing Beastars characters about how they got to this dimension. At the same time, the Zootopia characters return to their hotel after touring the city. The Sonic characters say goodbye to Gouhin and learn that the company where Washimi and Gori work people from another dimension came to work.
23. Sontopia - Another day begins: The start of the day with Bogo, Clawhauser, Shadow, Rouge, Rutan, Silver and Jewel in Japan.
24. Meetings and repentance: Nick, Judy, Jack and Finnick meet with Shadow and Rouge. On the other hand, Retsuko feels intimidated by Legoshi's physical appearance.
25. Mobian reunion: Father and son quality time between Sonic and Speed, to later have a reunion with Shadow and Rouge who come with their respective children.
26. Sonsuko - After lunch and more guests: The rest of the working day at the company where Retsuko works, while on the other hand Sonic and his friends, with their new guests, arrive at Gori's apartment.
27. Agreeing and Japanese sweets: Jack Savage's boss makes a deal for some agents to work with Shadow and Rouge to find Eggman's base. While on the other hand Judy brings as a surprise to her two children some Japanese sweets that she bought in a store.
28. Memories of the last three months: Shadow remembers all that he, Rouge, Rutan, Silver and Jewel lived in that dimension since they arrived there three months ago.
29. Family memories: Finnick remembers when Judy was pregnant and when he became an honorary uncle to Nicole and Jerry.
30. A concern for children: Retsuko's mother and grandmother have concerns about what might happen to the children and come up with the idea of taking them out of town for a while.
31. Dinner: Aggretsuko and Sonic characters have their respective dinners.
32. Concern, tourism and the start of the mission: Haida, Retsuko, Ookami, Fenneko, Komiya, Tsunoda, Manumaru, Resasuke, Retsuko's mother, and Retsuko's grandmother are worried about Koka, Hana, Izumi, and Daisuke's sudden mood swings towards them. Nick, Judy, Jack, Finnick, Nicole and Jerry spend a day sightseeing in Odaiba. Shadow, Rouge, Honey, Hugo and Morris prepare for a mission.
33. A worried workday and the start of the attack: Retsuko, Fenneko, Haida, Ookami, Komiya, Tsunoda, Manumaru, and Resasuke have worries about the workday, after not being able to sleep well the night before. The mission to find Dr. Eggman's base begins with an attack from his robots. On the other hand Sonic and the others begin to miss their world of origin, as well as their friends and other family members.
34. Trying to help, notice, entering the base: Jack decides to help his co-workers regain their good humor. Jack Savage's boss informs him about the mission that his companions are carrying out to stop Eggman at his base. Shadow and Rouge along with the agents he works with manage to enter Eggman's base.
35. Fake emerald chaos, a call and a date: Continue the mission to stop Dr. Eggman's base. Retsuko's mother and grandmother converse with Retsuko's father, and they discover that she will be coming home soon. Bogo and Clawhauser have a little date.
36. Mobius Part 1: Sonic's family members are standing in front of where Eggman's base was on his home planet, while reminiscing about past events involving him, Amy, and Speed.
37. Mobius Part 2: Amy, Tails, Cosmo, Knuckles, Tikal and Rouge's respectives families members reminiscing about past events involving to their loved ones. At the same time Chaos begins to feel the energy of the master emerald in another dimension and communicates it to the mobians.
38. Plans and worries: Nick, Judy, Jack and Finnick make plans to take the kids to a water park, later they come across the disturbing news that Mrs. Wilde, Stu and Bonnie are not answering their calls which worries them.
39. Time between couple: Bogo and Clawhauser spend couple time in the park as they decide to reveal their relationship to their acquaintances. On the other hand, Jack (Beastars) gathers his friends together to help tone down the humor of his coworkers a bit.
40. Escaping from the base: Shadow, Rouge, Honey, Hugo, Morris have to escape Eggman's base before it explodes. On the other hand, Nick, Judy, Jack and Finnick agree not to let Nicole and Jerry know that Eggman is missing so that they do not think that he is responsible for the disappearance of Stu, Bonnie and Mrs. Wilde.
41. Mobian communication: Shadow and Rouge inform Sonic, Amy, Tails, Cosmo, Knuckles, and Tikal about how their mission went. Retsuko tells her mother that she will be home an hour late. Decoe, Bocoe, and Bokkun meet up with Eggman.
42. Small gathering: Eggman anticipates Decoe, Bocoe, and Bokkun with part of his plan. Aggretsuko's parent couples go to a small meeting with their coworkers and after returning home they make a decision about their children.
43. Concern for parents: Nick, Judy, Jack and Finnick are still concerned about the disappearance of Mrs. Wilde, Stu and Bonnie, after Skye confirmed that there are no traces of them in Zootopia, so they decide to ask Sonic for help to find them.
44. Sontopia - Reunion: Judy's parents and Nick's mother appear in Japan, but due to certain situations they end up meeting Sonic, Amy and Speed.
45. A new day at work: Retsuko, Fenneko, Haida and Ookami start a better day at work than the day before. Izumi and Daisuke discover Koka and Hana's secret.
46. Explanations and apologies: Koka and Hana (with the help of the Zootopia and Mobius children) explain to Izumi and Daisuko why they didn't tell them about the secret they were keeping from them. On the other hand with the help of Jack, Legoshi and Retsuko finally get over their cliffhanger.
47. Free time between two couples: While spending a quiet day in the city, Bogo and Clawhawser meet Falco Lombardi and Fox McCloud.
48. Delivery of the last communicators: Tails calls the characters from Ratchet & Clank, Star Fox, Happy Tree Friends, Kaiketsu Zorori and Beastars to come get the communicators for their friends and acquaintances.
49. Calls and messages: The Mobius heroes talk to Jack Savage's boss and in the process learn that something has appeared in the Master Emerald. Washimi and Gori decide to go to a yoga class and decide to invite Retsuko and Fenneko. Koka, Hana, Izumi and Daisuke watch a program on TV while being taken care of by Retsuko's mother and Retsuko's grandmother.
50. Silhouettes: Knuckles, Tikal, Locke II and Pachacamac reach where the master emerald is and through it they manage to see the silhouettes of known people. Retsuko invites Fenneko to come with her, Washimi and Gori to do yoga.
51. Explanations and going to yoga classes: Knuckles, Tikal, Locke II and Pachacamac II return to their friends and explain what they saw in the master emerald. Retsuko, Fenneko, Washimi and Gori go to yoga classes, while Haida and Ookami against their will start taking classes as well.
52. Friday in the morning: Retsuko prepares to go to work, but leaves without Haida, due to some mishaps that occurred with him the night before. Sonic, Amy, Speed and the other mobians prepare to go meet the prime minister. It is somewhat reminiscent of the beginning of the polyamorous relationship between Nick, Judy and Jack.
53. Meeting with the prime minister: Sonic and the other Mobians visit the Prime Minister of Japan and he offers them to appear at a press conference.
54. Reactions: The reactions of the characters from Aggretsuko, Beastars and Zootopia, after the Sonic characters appeared at a press conference on TV.
55. Flower crown: On the planet Mobius, to keep her mind off recent events, Cream collects flowers with her daughter Lorraine to make flower crowns.
56. Calming down: After seeing a report on TV, a strong argument begins between Fox, Falco, Wolf and Leon that causes them to be separated into two rooms until they calm down.
57. Calls: Zorori talks to Finnick after seeing the phone after seeing the report. Haru and Juno get a call from Jack at work.
58. Worries about friends and working out: The characters of Happy Tree Friends are worried about how they will be doing with their friends in their home dimension. On the other hand Alister and Ratchet are in a gym doing some exercise.
59. Little meeting and news: Retsuko, Fenneko, Ookami, Washimi and Gori have a little chat in Washimi's office after seeing the report. Haida finds out that the rest of her family, both biological and political, will come to stay at her house.
60. A quiet afternoon: Nick, Judy, Jack, Finnick, Nicole, Jerry, Bogo, Clawhawser, Stu, Bonnie and Mrs. Wilde spend some time waiting for the people who come to represent the Prime Minister.
61. After the conference: Sonic and the other mobians return to Gori's apartment, as they begin to think about how things would be now that they finally revealed their identity to the inhabitants of the city. While Retsuko returns home to find that Haida has recovered from the previous night.
62. The arrival of a relative: Retsuko and her family are reunited with her father after several months of not seeing him.
63. Day at the pool: The inhabitants of Zootopia and Mobius (separately) arrive at Tokyo Summer Land for a day of relaxation.
64. Family Time: Retsuko and Fenneko have a little conversation on the phone about something that happened to them in the morning. After that, Retsuko spends a family moment with her father, mother, grandmother, husband and son playing a video game. Fenneko on the other hand also spends a family moment with her husband in her daughter going to Tokyo Summer Land.
65. A New Plan: Decoe, Bocoe, and Bokkun decide to make a plan to ruin Sonic and the others' day when they find out they have a day off. Washimi and Gori on the other hand go through their own break.
66. Getting rid of the robots: The protagonists split up to get rid of Decoe, Bocoe, and Bokkun so they stop ruining their free time.
67. After the battle: Each character relaxes after the attack by Eggman's robots ends after temporarily disposing of them.
68. Deciding to help: The Star Fox characters decide to help the Sonic characters in their mission to stop Eggman, but not before going through some arguments.
69. News on Mobius: While they were together worried about their siblings; Sonia, Manic, Anita, Galaxina, Kneecaps and Gabor receive more news from the Oracle of Delphius.
70. Meeting after the attack: Nick, Judy, Jack, Finnick, Nicole and Jerry reunite with their family and friends after the events of Tokyo Summer Land.
71. Relaxation and calls: After Ookami, Fenneko, and Hana return home, while the three of them relax, Fenneko receives a call from her friends to find out how they fared after the attack.
72. Good news and agreeing: Retsuko's father offers to help Retsuko Haida and Koka so they can go on the beach trip without Retsuko's mother finding out. Tails decides to build a radar to locate Eggman's new base and Jack offers to get him the materials he needs.
73. Messages from Mobius: The Mobians get to see through the silhouettes shown through the master emerald the messages from their relatives who are on the planet Mobius. While on the other hand Nick, Judy, Jack and Finnick talk about what they will do the next day.
74. Finding Parts and Starting Lessons: Jack and Judy go out looking for some of the parts for the new radar that Tails will build. Haida begins giving Nick lessons on how to play the bass.
75. Visit and continuing lessons: Finnick visits Zorori, Ishishi, and Noshishi. Haida continues with his lessons of teaching Nick to play the bass.
76. Meeting with old friends: Retsuko meets her old friend Puko again when she goes out for a walk with Koka. Haida is reunited with Tadano, while he continues to give Nick bass lessons.
77. Job interview and fun plans: Haru and Juno go to a job interview. Legoshi, Jack, Collot, Durham, Miguno and Voss decide to take Louis by force so he can have a day of fun.
78. Discovered and arcade: While having a romantic moment, Bogo and Clawhauser's relationship ends up being discovered by Jack and Judy. On the other hand Legoshi, Jack, Collot, Durham, Miguno and Voss take Louis to a video game room where they get a surprise.
79. Video game talent. Sad memories: Legoshi, Jack, Collot, Durham, Miguno and Voss are surprised to see how good Louis is at playing video games for his first time. During the meeting between Finnick, Zorori, Ishishi and Noshishi; Zorori ends up remembering his mother.
80. Alleviation and ready for a date: Finnick (in his own way) helps Zorori come clean after so many years of holding back tears that continued after her mother's death. Alister and Ratchet are finally able to go on a date, after the Mobians tell Clank that there is no danger of any civilians knowing where they came from.
81. Walk and meetings: Retsuko, Koka and Puko take a walk while they go to buy some sweets for Koka and her friends. Nick, Haida and Tadano leave the place where they were hanging out and when they leave in Tadano's limo they run into the other group by chance.
82. Conversations: Jack and Judy talk about the foxes they know who are very clever at building gadgets. Bogo and Clawhauser talk about when they will tell Nick and Finnick about their relationship. Skye looks back on everything she's been through while working for the agency and realizes that she wouldn't trade her life for anything.
83. Gathering after a long day: Skye is given the mission to help the mobians build the radars to locate the chaos emeralds. Nick, Judy, Jack, and Finnick meet up at the hotel after they had separate things to do that day. The mobians meet with Star Fox and Star Wolf.
84. Coming home after a long day: Haida, Retsuko and Koka return home after finishing their commitments for the day.
85. Final hours of the day (Part 1): The final moments of the day for the Beastars and Happy Tree Friends characters.
86. Final hours of the day (Part 2): The final moments of the day for the Ratchet & Clank and Star Fox characters.
87. Worrying about old friends: Haida suddenly remembers his friends Dokachin and Shikabane after not having heard from them since the conflict with Eggman began, so he decides to get in touch to find out what happened to them.
88. A lunch that brings back memories: Stu, Bonnie, and Mrs. Wilde prepare a lunch for their relatives. Nick, Judy and Jack get the radars to locate the chaos emeralds.
89. Plans almost ready: While each Mobian family spends their time relaxing, Eggman is putting the finishing touches to start his plan in two days.
90. Arrival of relatives: Haida and Retsuko's relatives come home to stay with the rest of their relatives due to the current situations in the city.
91. Reunion of two couples: Bogo and Clawhauser meet Falco and Fox, and during a conversation they end up meeting Haru and Juno who, after learning that they are involved in the same thing as them, tell them the latest things they have learned so far.
92. Spending the day in the park: While spending some time together at the park, Alister and Ratchet run into each other again than Disco Bear and Pop.
93. Finding out about the visit: The day ends with Retsuko finding out what secret Haida kept from her days before.
94. Problem fixed and continuing search: Haida and Retsuko finally resolve their issue regarding Haida not telling Retsuko that her relatives would stay home. Nick, Judy, and Jack listen on communicators as the search for Eggman's new base resumes.
95. More news on Mobius: Mobian mothers remember the last time they saw their loved ones before they were sent to another dimension. After that they receive new news from the other universe.
96. Finding an answer: The mobians, Star Fox, Star Wolf, and the agents discover that Eggman in fact took the arwings, wolfen, and the Great Fox. The boss of the detective agency meets Skye while she is on her way to build replicas of the starships teams Star Fox and Star Wolf.
97. Starting to build ships. A quiet lunch: Skye and her boss observe the holographic maps of the Star Fox and Star Wolf teams and then begin to build the replicas. Meanwhile in Tokyo, everyone is at lunch time minding their own business.
98. Deciding to help and preparing: Zorori, Ishishi and Noshishi decide to help the mobians in their attempts to prevent Eggman's plans. Nick, Judy, Jack, Finnick, Bogo and Clawhauser make preparations in case the city has to be evacuated.
99. Demonstration: After returning to Tokyo; Sonic and the other mobians meet Zorori and his apprentices and they demonstrate his ability to build any type of functional device out of junk.
100. Big problems (Part 1): With Eggman approaching the city, the evacuation of the inhabitants of Tokyo begins, while the Mobians try to stop their enemies.
101. Big problems (Part 2): With what seemed to be the start of a normal day for Bogo, Clawhauser, Nick, Judy, Jack, Finnick, Nicole, Jerry, Stu, Bonnie and Mrs. Wilde, it suddenly changes when the evacuation of the city begins.
102. Big problems (Part 3): While it was a normal day at work for Retsuko, Fenneko, Haida, Ookami, Legoshi, Jack, Collot, Durham, Miguno, Voss and Louis; Everything changes suddenly when the order is given to evacuate the city.
103. Big problems (Part 4): While Koka, Hana, Izumi and Daisuke spend a quiet day with Retsuko's mother, Retsuko's aunt, Retsuko's grandparents and Haida's parents; Things change when the order is given to evacuate the city.

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Tropes that can be found here:

• 20 Minutes into the Past: Sonic tells the characters of Zootopia and Aggretsuko through flashbacks, how he and his friends, along with the Eggman and his robots arrived in this dimension in "Questions And Answers".
  • Judy tells Retsuko and Fenneko how Jack became friends with her, Nick and Finnick in "The Search (Part 1)".
  • Ratchet tells Judy, Retsuko and Fenneko how he was transported to this planet and Alister makes a brief mention of how he and Ratchet met again in "The Search (Part 1)".
  • Fox, Falco, Slippy and Peppy tells Nick, Haida and Ookami how they were transported to this planet and as on their arrival their arwings and the Great Fox had disappeared. ROB also mentions that Wolf, Leon, and Panther had also lost their ships when they arrived in "The Search (Part 2)".
  • Lammy, Russell, Flaky, Pop and Sneaky tells Washimi and Gori how they were teleported to this dimension in "The Search (Part 3)".
  • Zorori, Ishishi and Noshishi tells Finnick how they were teleported to this city in "The Search (Part 4)".
  • Jack tells Tails part of his past where he reveals that his parents were also secret agents and that they both died when he was 10 years old in "The Search (Part 5)".
  • Jerry during the game of truth or dare in "Songgretopia - Children's Time" tells his friends about a prank he did to his "uncle" Finnick some time ago where he painted his face with a marker while he was sleeping.
  • As they share a kiss, Bogo and Clawhauser recall how they started their relationship one year earlier in "Sontopia - Visit to the Agency and Memories of the Past".
  • Haru and Juno tell Nick, Judy and Jack how they got to this dimension, and about the difficult situations that occur in their dimension of origin in "Meeting at the Tokyo Tower".
  • Shadow remembers the events of the last three and his and his family's stay in this dimension in "Memories of the last three months".
  • Finnick remembers the events of four years ago when Nicole and Jerry were born, and he became their honorary uncle in "Family memories".
  • There is a brief reference to a little crush Manumaru had in the past towards Fenneko, before he formed a relationship with Resasuke in "A concern for children".
  • There is a brief reference to how Falco and Fox, Alister and Ratchet, Disco Bear and Pop, Legoshi and Jack became a couple in "Time between couple".
  • Tails, Cosmo, Knuckles and Tikal remember the life they had without the presence of their respective parents in "Delivery of the last communicators".
  • Finnick partially tells Zorori, Ishishi and Noshishi about his childhood after being abandoned by his parents in "Alleviation and ready for a date".
  • Skye reminisces about how in the past she was able to prove her worth and how important she was to the agency, as well as the fact that all the agency's female agents her age (except herself) had been in love with Jack, and the reaction that they had when they found out that Jack had started dating Judy in "Conversations".
  • Disco Bear and Pop remember the events of when they, their children and also their friends with their respective children arrived from their home dimension to the city of Tokyo three months ago in "Final hours of the day (Part 1)".
  • Alister and Ratchet remember the events of when they both arrived on planet earth, and how Ratchet and Clank found out that Alister came back to life in "Final hours of the day (Part 2)".
  • References are made to when he quit his job when he almost caused fraud, his time unemployed, when he had to stop living in his apartment, his time living in an internet cafe, when he met Dokachin and Shikabane, when he started working in a store. , when he married Retsuko, and finally when he got a new job in "Worrying about old friends".
  • Decoe, Bocoe and Bokkun began to briefly reminisce about the event that caused him to become a bloodthirsty villain 5 years after the metarex war ended in "Plans almost ready".
  • Alister remembers several things from his past, such as the day he met Kaden when they were both children or the day Ratchet was born in "Spending the day in the park".
  • Aleena, Brenda, Rosemary, Lara-Le, Gala-Na and Ruby remember the last visits or the last day they saw their loved ones before they disappeared three months earlier in "More news on Mobius".
• The Ace:
  • Louis is quite skilled at video games on his first try, despite never having played them before as seen in "Discovered and arcade".
  • It is implied that Morris is this by being able to have joined the same detective agency that Jack works for while still a minor in "A lunch that brings back memories".
• Action Girl: There have been two cases of this:
  • Amy Rose is this in "Songgretopia - The Heroes", since from the beginning she is the only girl of Sonic's group who confronts Eggman so that him do not harm the characters of Zootopia and Aggretsuko.
  • Rouge The Bat and Honey Badger are this on the mission to capture Dr. Eggman at his base.
• A Day In The Life: "Families and Children" and "Aggretopia - New Friends" it is the case for the characters of Zootopia and Aggretsuko, having formed their own families years after their respective stories had ended.
  • It would also be for the Sonic characters in "Songgretopia - The Heroes".
• A Day in the Limelight: There are some cases of this in history.
  • "Families and Children" has a bit of this for Finnick and Ookami.
  • "The Search (Part 2)" has a bit of this for Ookami too.
  • "The Search (Part 3)" has this for Washimi and Gori.
  • "The Search (Part 4)" has this for Finnick.
  • "Songgretopia - Children's Time" has this for the next generation children.
  • "Sontopia - Another day begins" has this for Bogo, Clawhauser, Shadow, Rouge, Rutan, Silver and Jewel.
  • "Family memories" has this for Finnick.
  • "Mobius Part 1" and "Mobius Part 2" have this for various characters from Mobius such as Aleena, Sonia, Manic, Chuck, Paulie, Brenda, Galaxina, etc.
  • "Free time between two couples" has this for Bogo, Clawhauser, Fox and Falco.
  • "Flower crown" has this for Cream, Charmy, Lorraine and Cheese.
  • "Calming down" has this for Fox, Falco, Slippy, Peppy, ROB, Wolf, Leon and Panther.
  • "Calls" has this for Zorori, Ishishi, Noshishi, Haru and Juno.
  • "Deciding to help" has this for Fox, Falco, Slippy, Peppy, ROB, Wolf, Leon and Panther.
  • "News on Mobius" has this for Sonia, Manic, Anita, Galaxina, Kneecaps and Gabor.
  • "Job interview and fun plans" has this for Haru, Juno, Gouhin, Legoshi, Jack, Collot, Durham, Miguno, Voss and Louis.
  • "Discovered and arcade" has this for Bogo and Clawhauser in the first half of the chapter; and for Legoshi, Jack, Collot, Durham, Miguno, Voss and Louis in the second half of the chapter.
• Adaptational Backstory Change: The backstories of Sonic and Knuckles before the events of Sonic X, are the same as they had in Sonic Underground.
  • Some of Knuckles' backstory is similar to the one he had in Archie Comics, before the Super Genesis Wave.
  • Silver would become Shadow and Rouge's son.
• Affectionate Nickname: There are three cases in this trope.
  • Miles Prower is better known as "Tails" since he was young and all his friends, including his wife Cosmo call him by that nickname. Even the characters in Zoootopia and Aggretsuko refer to him by this nickname after becoming friends with him.
  • Nick's nickname for Judy Hopps is "Carrots" and he's the only one who calls her that way from the time they met to the present.
  • Nick's nickname for Jack Savage is "Stripes." He put it on when they started a love rivalry when they both fell in love with Judy. Currently that they are both in a polyamorous relationship with her, he still calls it that way, but as a token of friendship.
  • Sneaky's nickname for Mouse Ka-Boom since they became a couple was "Mousey" while Fluffy refers to him as "Uncle Ka-Boom".
  • Mouse Ka-Boom's nickname for Sneaky since they became a couple was "Snake" while Fluffy refers to him as "Uncle Sneaky".
  • Bogo's nickname for Clawhauser since they became a couple was "Clawsy".
  • The superhero nicknames that Clawhauser has given to Nicole and Jerry are "Super Vixen" and "Super Rabbit".
• All Genes Are Codominant: There are some cases of this with the children of the next generation.
  • Jerry Savage (Jack and Judy's son) has traits of Jackrabbit and rabbit.
  • Hana (Ookami and Fenneko's daughter) has traits of maned wolf and fennec fox.
  • Izumi (Komiya and Tsunoda's daughter) has traits of meerkat and gazelle.
  • Daisuke (Manumaru and Resasuke's son) has traits of Pallas cat and red panda.
  • Bella (Truffles and Lammy's daughter) has traits of boar and sheep.
  • Robby (Russell and Mime's son) has traits of sea otter and deer.
• Ambiguously Gay: Subverted. Bogo and Clawhauser are gay, but none of those who work with them has realized that or suspected it.
• Animal Religion: In "Songgretopia - End Of The Day"; Haida, Retsuko, Koka, Retsuko's mother, and Retsuko's grandmother are seen praying before eating which implies that they have religious beliefs.
  • Haida, Retsuko, Koka, Retsuko's mother, and Retsuko's grandmother are seen praying again before dinner near the end of "After the conference".
  • Haida, Retsuko, Koka, Retsuko's mother, Retsuko's father and Retsuko's grandmother are seen praying one more time before lunch in "The arrival of a relative".
• Animal Stereotypes: There are some cases here:
  • Nick Wilde and Finnick are very tricky and confident to the point that Nick very easily convinced Haida to teach him to play the bass very easily, while Finnick brought his and his companions' swimsuits in case the opportunity that they could go swimming, although it was not in the plans of the others.
  • Wolf O'Donnel is always quite serious every time he appears and his rudeness is captured by everyone.
• Arboreal Abode: In the Happy Tree Friends character dimension, all buildings are of this type.
• Arch-Enemy: Sonic and Eggman mainly. Although the same happens also for Amy, Tails, Cosmo, Knuckles, Tikal, Shadow and Rouge with Eggman.
• Artistic License – History: It is mentioned that Zootopia and Bunnyburrow are located in the USA, but an exact location is never given on what state it is in.
• Ascended Extra: Finnick, Ookami and Tikal are this, taking into account their appearances in their source materials.
• Back from the Dead: This has happened twice.
  • This happened to Cosmo 20 years before the events of the story, exactly one year after the events of Sonic X.
  • This happened to Alister 3 months before the events of the story.
  • This happened to all the Happy Tree Friends characters at all times, but they always end up coming back to life as if nothing had happened in less than a week. Although Cub has remained alive without any death since 6 years before the events of the story and he doesn't remember any of that. The other children have not experienced that.
  • This happened to Zorori, Ishishi and Noshishi at some point in the past, when they had died and then were revived a few hours later.
• Barefoot Cartoon Animal: All Zootopia characters are this.
  • Zorori, Ishishi and Noshishi are that too.
• Berserk Button: Finnick, when Haida mistakes him for a child in "Aggretopia - New Friends".
• Big Bad: Dr. Eggman, which is accompanied by his robots Decoe, Bocoe and Bokkun.
• Big Damn Heroes: Sonic, Amy, Tails, Cosmo, Knuckles, Tikal and their respective children are this as seen in "Songgretopia - The Heroes".
  • Shadow and Rouge are this, as mentioned by Clawhauser in "A New Refuge".
• Big "WHAT?!": There have been three cases regarding this.
  • This is the reaction Nick, Judy, Jack, Finnick, Retsuko, Fenneko, Haida, Ookami, Washimi and Gori have when they find out that Tikal is 4000 years old, when she is physically 36 years old in "A New Refuge".
  • Sonic, Amy, Tails, Cosmo, Knuckles, Tikal and Jack have this reaction when Ookami tells them that the beings they were looking for were more than 20, when they expected them to be less in "Surveillance and Reunions".
  • Sonic, Amy, Tails, Cosmo, Knuckles, Tikal, Speed, Flora, Alex, Locke II, Pachacamac II, Haida, Retsuko, Ookami and Gori have this meeting when they learn that Nick, Judy and Jack have a polyamorous relationship in "Surveillance and Reunions".
• Bittersweet Ending: At the end of "Songgretopia - The Heroes" Sonic and his friends are in charge of rescuing the characters of Zootopia and Aggretsuko, which they achieve without any problem, but Eggman still ends up obtaining the chaos emeralds that had been found by Koka, Hana, Nicole and Jerry.
• Breather Episode: "Songgretopia - Children's Time" serves as this after the search for people from other dimensions and the master emerald, where it is shown what the children did during the absence of their parents.
• Butt-Monkey: Decoe, Bocoe and Bokkun are this.
• Call-Back: 22 years ago, Sonic and his friends with Dr. Eggman and his robots had been trapped on the planet earth (from Sonic X) and Sonic, Tails and Amy's stayed living in the Thorndyke mansion while staying there; currently all of them are living a similar situation to the previous time.
  • Eggman's base is invaded by an agency (where Rouge is involved) and ends up being destroyed, just like his original base in the first half of the first season of Sonic X.
• Call to Adventure: The characters of Zootopia and Aggretsuko offer to help the Sonic characters without hesitation, to prevent Dr. Eggman from conquering their planet.
• Carnivore Confusion: Sonic and Speed are two hedgehogs whose favorite food is chili dogs, which are made with animal meat.
  • Gori, Amy, Cosmo, Flora, Knuckles, Tikal, Locke II, Pachacamac II, Rutan and Silver also get to eat chili dogs.
• Celibate Hero: Finnick is this, since he is the only main character who has never been romantically interested in anyone, and currently remains single without being interested in looking for a partner or having children.
  • Washimi today is this too, since after getting divorced years ago, she currently has no partner and she is not interested in finding one. She also has no children.
  • Gori is like that at times.
• Character Development: Many of the characters had their own developments prior to the events of the story, yet they are still visible during the plot.
  • Nick Wilde after becoming a cop has become more mature and nowadays he only resorts to his old ways only if absolutely necessary.
  • Jack Savage was previously a loner who did not want to have friends due to certain situations that he lived in the past, after a mission in which he teamed up with Nick, Judy and Finnick where he almost died and after being saved by them, he decides to reconsider his whole style of life and give themselves the opportunity to have friends, becoming friends with the three of them.
  • Finnick has not changed much though, one thing that did change was that he finally has someone to care about and protect, since since Nick, Judy and Jack formed a polyamorous relationship and had children, Finnick has become quite protective towards his honorary niece and nephew and even risk his life for them.
  • Retsuko shortly after leaving the OTM Girls and returning to work at the company, she reconsidered her love life as she recalled her past relationships with Resasuke, Shirota, and Tadano; After thinking about it, she decided to give Haida a chance, and in the end she ended up realizing that he was the right person for her. They are currently happily married with one son.
  • Amy Rose after having matured over the years, became less prone to anger and her obsession with Sonic, this caused him to give her a chance to go out on a date, which eventually led to a marriage and a son. She currently only lets her anger out of her when it comes to villains.
  • Cosmo The Seedrian grew braver after her death and resurrection. She is less shy and stands up for people who need her help.
  • Knuckles The Echida (like Amy) became less prone to anger, thanks to Tikal, who helped him with his anger problems by achieving a more relaxed attitude. He only uses his anger against the villains.
  • Komiya after having married Tsunoda and having a daughter, thought that he would not like his daughter to happen at work in the future the same as Retsuko does, that is why he realized that his behavior with Retsuko during all their years that they worked together was not the right one, so he apologized to her for that and they currently have a better relationship.
• Chekhov's Gun: Nicole and Jerry (behind a water fountain at the Tokyo airport) Koka and Hana (in the sandbox in a park) find some red, blue, green and yellow jewels respectively in "Families and Children" which turns out to be the that begins an adventure that they never imagined they would have and that would involve them, their relatives and those close to them.
• Cliffhanger: Three cases of this have occurred:
  • When Dr. Eggman appears at the restaurant where the characters of Zootopia and Aggretsuko meet, he makes his robots surround them and the children, leaving them unable to escape at the end of "Aggretopia - New Friends".
  • When Eggman is following the ship that the heroes are using to get to the exact place where the master emerald is located in "The Search (Part 5)".
  • When Nick goes to find out who is knocking on the door of his hotel room he is quite surprised who had just arrived in "Concern for parents".
  • While most of the protagonists are relaxing in Tokyo Summer Land, they don't realize that they are being watched and that their fun would not last for long in "Family Time".
  • All the inhabitants of the city and nearby areas are surprised when they see what was happening in Tokyo Sumer Land on the news in "A New Plan".
  • After Alister and Ratchet leave to go on a date, while Clank is left alone and deactivates to rest, a smaller robot arrives and adds something to it without Clank noticing in "Alleviation and ready for a date".
  • After a cloud of blue dust begins to cover Tokyo; Tails and Alex begin to turn into wild animals with the intention of attacking their friends and family in "Big problems (Part 1)".
  • After a cloud of blue dust began to cover Tokyo; Nick, Finnick, Nicole, Mrs. Wilde and Clawhauser begin to turn into wild animals with the intention of attacking their friends, family and/or mate in "Big problems (Part 2)".
  • After a cloud of blue dust began to cover Tokyo; Fenneko, Haida, Ookami, Washimi, Manumaru, Inui, Tsubone, Kara, Pen, Yokosawa, Legoshi, Jack, Collot, Durham, Miguno and Voss begin to turn into wild animals with the intention of attacking their family, friends, and coworkers in "Big problems (Part 3)".
  • After a cloud of blue dust began to cover Tokyo; Juzo, Haida's mother, Hana and Daisuke to turn into wild animals with the intention of attacking their family and friends in "Big problems (Part 4)".
• Comfort Food: Chillidogs serve as this for Sonic and Speed.
• Continuity Nod: There are several occasions where there is this trope.
  • References to when Judy became a cop and her first major case at work in "Aggretopia - New Friends".
  • References to the time when Retsuko was part of the OTM Girls and how Komiya became in her fan in "Aggretopia - New Friends".
  • Reference to when Fenneko and Kabae were trying to find out who Retsuko was dating, at the time when she was in a relationship with Tadano in "Aggretopia - Call From Acquaintances".
  • References to Alister's sacrifice to save Ratchet and the rest of the universe in "The Search (Part 1)".
  • References to Peppy being Corneria's general in "The Search (Part 2)".
  • References to the dating app that Gori created and how Haida and Retsuko were compatible on it in "The Search (Part 3)".
  • References to adventures that Zorori, Ishishi and Noshishi had in the past in "The Search (Part 4)".
  • References to the cruise trip that Sonic, Tails and Amy had in the past where Sonic went crazy being surrounded by the sea in "The Search (Part 6)".
  • References to when the characters of Zootopia and Aggretsuko were surrounded by reporters who wanted to know about the Mobius heroes who rescued them in "Back to Work".
  • References to when Anai was the new employee in the accounting area in "Back to Work".
  • References to when Retsuko went to work once in sandals in "Noon at the Work".
  • References to when the times Fenneko contradicts herself about things her friends shouldn't try, but which she ends up obsessing over in "Noon at the Work".
  • References to Judy's first mission as a cop that she solved together with Nick in "Meeting at the Tokyo Tower".
  • Finnick mentions when he went to a bar the day before to sample some of Japan's traditional alcoholic drinks when he was supposed to be looking for people from other universes scattered around town, much to the annoyance of Jack and Judy in "The end of another day".
  • Indirect references to two dangerous situations that Retsuko went through in his life, one being when he almost died being attacked by an obsessive fan of the OTM Gilrs, and the other by the attack of Dr. Eggman in "Meetings and repentance".
  • Anai remembers his time when he was the new employee in the company in "Sonsuko - After lunch and more guests".
  • References are made to the first case that Nick and Judy did together, where one of the places they had to go was: The Mystic Spring Oasis in "Concern, tourism and the start of the mission".
  • Sonic and his friends while remembering their world of origin and thinking that a similar situation could happen, they suspect that time could stop, and they remember how it had already happened once with their planet and the other planet earth in "A worried workday and the start of the attack".
  • Various events of Sonic Underground such as the fact that Sonic is part of the royal family of Mobotropolis, son of Queen Aleena, brother of Sonia and Manic, and nephew of Chuck; the fact that the triplets were separated shortly after birth; Sonic being raised a few years by his uncle Chuck who would be robotized; the reunion of Sonic and his siblings to face the forces of evil; are referenced in "Mobius Part 1".
  • References to the Metarex attack on the ship where Galaxina and Cosmo lived when they were younger and Cosmo's temporary death in "Mobius Part 2".
  • Brief references are made to Judy's parents' concern when she moved to Zootopia during the events of "Plans and worries".
  • Reference to when Fox was left with a broken heart after the events of the predetermined ending of Star Fox Command in "Time between couple".
  • References to when Retsuko was part of OTM Girls in "Explanations and apologies".
  • Reference to when Cosmo sacrificed her life in the final battle against the Metarex in "Delivery of the last communicators".
  • Reference to when years ago Chaos lost control because of Eggman and how Sonic managed to stop him in "Calls and messages".
  • References to when the yoga instructor made Retsuko take Yoga classes, and the fact that Retsuko became friends with Washimi and Gori in "Explanations and going to yoga classes".
  • References to when Sonic and his friends were on planet earth during the events of Sonic X in "Reactions".
  • Chamy and Cream remember when they were on planet earth during the events of Sonic X in "Flower crown".
  • References to when Fox dated Krystal, and how bitter their split was when she decided to be a part of Star Wolf permanently in "Calming down".
  • References to when Wolf and Leon met in a bar years ago in "Calming down".
  • Reference to the relationship between Panther and Krystal in "Calming down".
  • References to the time when Juno was in love with Legoshi and also to the time when Legoshi dated Haru in "Calls".
  • References to when Haida did poorly in yoga class the night before at "Worries about friends and working out".
  • References to when Retsuko's mother arranged dates for her daughter to find her a husband in "The arrival of a relative".
  • References to when Sonic swimming during the events of Sonic Underground and his fear of water during the events of Sonic X in "Day at the pool".
  • References to when Sonic, despite being afraid of water, saved Amy on two occasions during the events of Sonic X in "Day at the pool".
  • References to when Sonic and the others revealed their identities to the people of Station Square when they attacked Eggman's base during the events of Sonic X in "A New Plan".
  • Reference to the bombs that Bokkun used to drop during the events of Sonic X that when they exploded they left people nearby covered in soot in "A New Plan".
  • References to when both Fox and Panther (at different times) dated Krystal before both relationships ended in "Deciding to help".
  • References to Cosmo's sacrifice during the final battle against the Metarex in "News on Mobius".
  • References to the sacrifice of Tikal to stop the wrath of Chaos more than 4000 years ago in "News on Mobius".
  • References to the time when Sonic, Sonia and Manic composed songs together in "News on Mobius".
  • References that Shadow was created on the version of planet earth that Dr. Eggman came from, and being 50 years older than he appears in "Messages from Mobius".
  • References to when Haida taught Retsuko how to play electric guitar several years ago in "Finding Parts and Starting Lessons".
  • References to the case that Nick and Judy worked together when they met in "Visit and continuing lessons".
  • References to when Retsuko dated Tadano in "Meeting with old friends".
  • References to when it became big news that Retsuko was dating Tadano and the negative comments she had on her instagram in "Meeting with old friends".
  • Jack and Judy find out about Bogo and Clawhauser's romantic relationship in "Discovered and arcade" and in Judy's case she learns that she and Nick were responsible for Bogo and Clawhauser's relationship. Also Jack and Judy find out that Bogo and Clawhauser planned that the two of them and also Nick and Finnick were the first to tell about their relationship.
  • References are made to when Louis slept with Haru when they were in high school in "Video game talent. Sad memories".
  • References are made to Zorori, Ishishi and Noshishi's encounters with when they met Zororina when they were temporarily dead, and when they traveled back in time and met the younger version of her in the past in "Video game talent. Sad memories".
  • References to the time when Retsuko was dating Tadano and he had told her that he didn't want children in "Walk and meetings".
  • References to the number of times Disco Bear, Pop, and Cub have suffered deaths and resurrections in their home dimension in "Final hours of the day (Part 1)".
  • References are made to past battles between Star Fox and Star Fox in "Final hours of the day (Part 2)".
  • References are made to when Krystal joined Star Wolf in "Final hours of the day (Part 2)".
  • References are made to when ROB had to use a laser beam to momentarily incapacitate Fox, Fox, Wolf, and Leon to stop a fight they were about to form a few days earlier in "Final hours of the day (Part 2)".
  • References have been made to the time when Haida resigned from the company, got a brief job at a store, and how he later got another job at an unknown company in "Worrying about old friends".
  • References to the past are made to Alister and how he was responsible for the other Lombax disappearing in "Spending the day in the park".
  • References are made to Zorori being able to build functional things out of anything he can find in "Deciding to help and preparing".
  • Indirect reference to when Bonnie and Judy had bad experiences with wild animals in the past in "Big problems (Part 2)"
• Contrast Montage: "The Search (Part 1)", "The Search (Part 2)", "The Search (Part 3)" and "The Search (Part 4)" are this, since they show the different searches for the city of the beings of other planets/dimensions/city by the characters of Zootopia and Aggretsuko. While "The Search (Part 5)" and "The Search (Part 6)" focuses on the search for the master emerald. "Songgretopia - Children's Time" show what the children did while the adults were away.
  • The chapter "Escaping from the base" (with the exception of the final part) takes place at the same time as the chapters "Plans and worries" and "Time between couple".
  • The second half of "Calls" takes place at the same time as "Meeting with the prime minister" and "Reactions".
  • "Worries about friends and working out" takes place at the same time as the second half of "Calls" and also at the same time as "Meeting with the prime minister" and "Reactions".
  • "Getting rid of the robots" takes place at the same time as the second half of "A New Plan".
  • Big problems (Part 1), Big problems (Part 2), Big problems (Part 3), Big problems (Part 4) take place at the same time and show what some characters did before the evacuation warning, as well as during it.
• Conveniently Timed Distraction: This happens three times in "A New Refuge". When the characters want to agree on how to find the characters from other dimensions and other planets that fell in Japan, as well as agree to find the remaining emeralds, the distractions occur in this way.
  • The first time by Tails and Jack when, the latter asks many questions about the tracker of the emeralds that own. They take a long time at this.
  • The second time also for Tails and Jack when the latter asks more questions, but this time about a box where they keep the chaos emeralds so that they are not detected. At this point and knowing that these two take a long time to do this, the others decide to watch television for a while.
  • The third time, all of Jack's doubts about the devices that Tails built are cleared. But when they are going to agree on what to do, the conversation is interrupted once when Retsuko, Haida, Fenneko, Ookami, Washimi, Gori, Nick, Judy and Jack are called by cell phone after their relatives (boss of the organization in the case of Jack) saw in the news what happened to them in the restaurant.
• Crossover: Massive Multiplayer Crossover between different Funny Animal franchises among which the main ones are Zootopia, Aggretsuko and Sonic X, with recurring appearances of characters from Beastars, Star Fox, Kaiketsu Zorori, Happy Tree Friends and Ratchet & Clank.
• Crossover Cameo: There are some of these.
  • Sonic, Amy , Tails, Cosmo, Knuckles, Tikal and their respective children have a cameo at the end of "Families and Children" trying to find the remaining chaos emeralds while holding three of them.
  • Dr. Eggman, Decoe, Bocoe and Bokkun have two cameos in "Aggretopia - New Friends".
  • Peter Moosebridge and Fabienne Growley make a cameo on television when Bogo, Clawhauser, Shadow, Rouge, Rutan, Silver and Jewel watch the report of Dr. Eggman's attack on a restaurant in Japan in "A New Refuge".
  • Dr. Eggman, Decoe, Bocoe and Bokkun have other cameo in "A New Refuge".
  • Mrs. Wilde, Stu Hopps and Bonnie Hopps show up when they are on the phone with Nick, Judy, Nicole and Jerry to see that they are all right after seeing them on the news "Aggretopia - Call From Acquaintances".
  • Jack Savage's boss appear when she communicates with Jack and he gives her a report of what happened. She reappears when she gives the other agency agents a mission to investigate where Dr. Eggman's base is located and try to locate the missing chaos emeralds in "Aggretopia - Call From Acquaintances".
  • Retsuko's mother and Retsuko's grandmother appear on the phones of Retsuko and Haida after seeing them on the news and informing them that they will be living with them again for a while in "Aggretopia - Call From Acquaintances".
  • Skye appears observing her boss giving a new mission to the other agents of the agency and then receiving a call from Finnick where he asks her to please watch over Mrs. Wilde, Bonnie and Stu so they do not leave Zootopia in "Aggretopia - Call From Acquaintances".
  • Nick, Haida, Ookami, Judy, Retsuko, Fenneko, Washimi, Gori and Finnick appear walking through the streets of the city after having left Gori's apartment in "The Search (Part 5)".
  • Jack Savage's boss appear when Jack communicates with her to ask for one of his flying vehicles to search for the master emerald in "The Search (Part 5)".
  • Nick and Judy appear in a flashback when it is shown how Bogo and Clawhauser began a relationship a year ago in "Sontopia - Visit to the Agency and Memories of the Past".
  • Bogo, Clawhauser, Shadow, Rouge, Rutan, Silver and Jewel appear riding in a taxi while Skye observes them through X-ray viewer in "Surveillance and Reunions".
  • Ratchet, Clank, Alister Azimuth, Fox McCloud, Falco Lombardi, Slippy Toad, Peppy Hare, ROB 64, Wolf O'Donnell, Leon Powalski, Panther Caroso, Disco Bear, Pop, Cub, Rory, Flippy, Flaky, Fluffy, Sneaky, Mouse Ka-Boom, Denisse, Bomb, Truffles, Lammy, Mr. Pickles, Bella, Russell, Mime, Robby, Zorori, Ishishi, Noshishi, Arthur, Elzie, Gaon, Milly, Nelly, Roger, Najō, Puppe and Pepero appear during the meeting at Gori's apartment in "Surveillance and Reunions" and "Leaving Zootopia and fake book club".
  • Retsuko's mother and grandmother appear during a video call with her in "Leaving Zootopia and fake book club".
  • Nick, Judy, Jack, Finnick, Nicole, Jerry, Haida, Ookami, Fenneko, Washimi, Gori, Koka, Hana, Amy, Tails, Cosmo, Knuckles, Tikal, Speed, Flora, Alex, Locke II, Pachacamac II make a brief appearances at Gori's apartment, (although only Nick, Judy, Finnick and Haida are the only ones speaking)
  • Hana appears briefly when Ookami and Fenneko take her to Haida and Retsuko's home, so Retsuko's mother and grandmother can take care of them while they go to work in "Back to Work".
  • Adachi, Anai, Arihiko, Bibanuma, Kabae, Kara, Komiya, Manager Buffalo, Manumaru, Masashiro, Resasuke, Rinta, Tsunoda, Warabida and Yokosawa appear in the accounting area asking Retsuko, Fenneko, Haida and Ookami many questions about what happened to them the weekend after Dr. Eggman's attack in "Back to Work".
  • Ton and Tsubone appear briefly berating the workers who are pestering Retsuko, Fenneko, Haida and Ookami with their questions about what they were doing to them during work hours "Back to Work".
  • Shachou appears briefly to introduce the new interns who will be working for the company in the accounting area in "Back to Work".
  • Legoshi, Louis, Jack, Collot, Durham, Miguno and Voss appears briefly as Carrier Man Trading Co., Ltd.'s new accounting interns in "Back to Work".
  • Hana, Izumi and Daisuke appear eating ice cream together with Retsuko's grandmother, Retsuko's mother and Koka, when Retsuko calls Koka on the phone to do her a favor in "Noon at the Work".
  • Haru and Juno appear in the Tokyo Tower elevator when Nick, Judy, Jack, Finnick, Nicole, and Jerry go up to the tower's observation deck in "Noon at the Work".
  • Kabae, Anai, Tsubone and Ton show up at the office during the second half of the work day in "The end of another day".
  • Nick, Judy, Jack, Finnick, Nicole and Jerry make a brief appearance by meeting Bogo in the hotel room where he is staying. "Sontopia - Another day begins".
  • Louis, Collot, Durham, Miguno and Voss appear working in the accounting area in "Meetings and repentance".
  • Sonic and Speed are in an open field about to have a father and son career in "Meetings and repentance".
  • Honey, Morris, and Hugo appear during the meeting at the agency when they agree to team up with Shadow and Rouge in "Agreeing and Japanese sweets".
  • Skye appears observing the other agents of the agency going on mission in "Agreeing and Japanese sweets".
  • Anai appears helping Retsuko with the extra work that Ton and Tsubone gave her in "A concern for children".
  • Legoshi, Louis, Jack, Collot, Durham, Miguno and Voss are shown leaving work and heading home in a taxi in "A concern for children".
  • Shadow, Rouge, Honey, Morris, and Hugo appear having a brief meeting and then go to a hotel and prepare for the next day's mission in "Dinner".
  • Shadow, Rouge, Honey, Morris, and Hugo appear getting ready to go on a mission in "Concern, tourism and the start of the mission".
  • Sonic, Rutan, Silver, and Jewel appear when Shadow and Rouge notify them by a communicator that they will go to find Eggman in "Concern, tourism and the start of the mission".
  • Anai, Kabae, Tsubone, Ton, Legoshi, Louis, Jack, Collot, Durham, Miguno and Voss appear in the accounting area when Retsuko, Fenneko, Haida, Ookami and Komiya arrive to work in "A worried workday and the start of the attack".
  • Decoe, Bocoe and Bokkun appear at Eggman's base heading to the place where they heard an explosion accompanied by an army of robots in "Fake emerald chaos, a call and a date".
  • Many of Sonic's characters appear with his family standing in front of the place where Eggman's base was in "Mobius Part 1" and "Mobius Part 2".
  • Falco, Fox, Alister, Ratchet, Disco Bear, Pop, Cub and Rory are in the same park that Bogo and Clawhauser went to relax in "Time between couple".
  • Ton, Anai, Warabida, Yokosawa, Louis, Collot, Durham, Miguno and Voss show up during the workday in "Time between couple".
  • Louis, Collot, Durham, Miguno, Voss, Retsuko, Fenneko, Haida, Ookami, Komiya, Tsunoda, Manumaru, Resasuke, and Anai are outside Carrier Man Trading Co., Ltd's after the end of the business day with Jack and Kabae in "Time between couple".
  • Eggman appears during a video call he has with Decoe, Bocoe, and Bokkun in "Escaping from the base".
  • Peppy Hare, Slippy Toad, Zorori, Ishishi and Noshishi are in the same place where Carrier Man Trading Co., Ltd. workers meet in "Small gathering".
  • Flora, Alex, Locke II, Pachacamac II, Rutan, Silver, Jewel, Koka and Hana appear on Speed's communicator when he, Nicole, and Jerry call them to chat with them in "Sontopia - Reunion".
  • Ton appears arriving at work in "A new day at work".
  • Retsuko's mother and grandmother appear when Izumi and Daisuke arrive home in "A new day at work".
  • Speed, Flora, Alex, Locke II, Pachacamac II, Rutan, Silver, Jewel, Nicole and Jerry appear in Koka and Hana's communicators talking to them in "A new day at work".
  • Ton appears doing some calculations with his abacus during working hours in "Explanations and apologies".
  • Speed, Flora, Alex, Rutan, Silver, and Jewel show up when Knuckles and Tikal come looking for Locke II and Pachacamac II to escort them on a short jaunt out of town in "Calls and messages".
  • Ratchet, Clank, Alister, Peppy, Panther, Flippy, Flaky, Fluffy, Elzie, Najō and Gouhin appear when Knuckles, Tikal, Locke II, and Pachacamac tell them that they must suddenly leave on business outside the city in "Calls and messages".
  • Skye appears when she comes to pick up Knuckles, Tikal, Locke II, and Pachacamac II on a plane to take them to the detective agency in "Calls and messages".
  • Retsuko, Legoshi, Ton, Tsubone, Haida, Jack and Louis appear carrying out their work activities when Washimi and Gori momentarily pass in front of the company's accounting area in "Calls and messages".
  • Retsuko's mother and Retsuko's grandmother are seen watching TV along with Koka, Hana, Izumi and Daisuke while watching one of their favorite shows in "Calls and messages".
  • Peppy, Slippy, Alister, Ratchet, Truffles, Lammy, Ton's wife, Ton's daughters and Hakumi appear among those present who took yoga classes in "Explanations and going to yoga classes".
  • The yoga instructor's assistant appears when the yoga classes are about to start in "Explanations and going to yoga classes".
  • Retsuko's mother and Retsuko's grandmother appear when Retsuko is preparing to go to work in "Friday in the morning".
  • Koka appears when Retsuko asks him to help his father with anything he needs in "Friday in the morning".
  • Hana appears when Ookami and Fenneko bring her to Retsuko's house for care in "Friday in the morning".
  • Nicole, Jerry, Mrs. Wilde, Stu and Bonnie appear having breakfast with Nick, Judy, Jack, and Finnick at the end of "Friday in the morning".
  • Gouhin appears along with the Prime Minister's other bodyguards when Sonic and the other mobians meet him personally in "Meeting with the prime minister".
  • Anai, Collot, Durham, Miguno and Voss are shown sitting together at a table; while on the other hand Kabae and Louis are sitting at another table; at the moment when Retsuko, Fenneko and Ookami are talking to Legoshi and Jack in "Meeting with the prime minister".
  • Haida, Retsuko's mother and Retsuko's grandmother are sitting watching TV while Koka, Hana, Izumi and Daisuke are playing board games in "Meeting with the prime minister".
  • Mrs. Wilde, Stu, and Bonnie are seen shopping for souvenirs at a store while being joined by Nick, Judy, Jack, Finnick, Nicole, and Jerry in "Meeting with the prime minister".
  • Gouhin is standing together with Sonic and the others during the press conference in "Reactions".
  • Vanilla and Vector show up when Charmy, Cream, Nick, Lorraine, Cheese, and Chocola arrive in town to meet them in "Flower crown".
  • Aleena, Amadeus, Locke, Pachacamac, Chaos and Oracle of Delphius appear arriving at Green Hill to tell the inhabitants of what they found out regarding the relatives of the first four in "Flower crown".
  • Jack appears briefly conversing with Finnick, after the latter ends his call with Zorori, Ishishi, and Noshishi in "Calls".
  • Arthur, Elzie, Gaon, Milly, Nelly, Roger, Najō, Puppe and Pepero appear when Zorori, Ishishi and Noshishi return to the castle, and tell them about how things were in the city and tell them that for the moment there is nothing to worry about in "Calls".
  • Sonic, Amy, Speed, Tails, Cosmo, Flora, Alex, Knuckles, Tikal, Locke II, Pachacamac II, Shadow, Rouge, Rutan, Silver, Jewel and Gouhin appear on TV while Haru and Juno watch the press conference at their apartment in "Calls".
  • Kabae and Louis appear in the company break room, where Kabae goes on and on about various topics much to Louis' annoyance in "Calls".
  • Collot, Durham, Miguno and Voss are sitting together with Legoshi and Jack, once the latter finishes talking on the cell phone with Haru and Juno in "Calls".
  • Sonic, Amy, Speed, Tails, Cosmo, Flora, Alex, Knuckles, Tikal, Locke II, Pachacamac II, Shadow, Rouge, Rutan, Silver, Jewel and Gouhin appear on TV when the characters from Happy Tree Friends in a coffee, and the characters from Ratchet & Clank with the yoga instructor in a gym watch the press conference in "Worries about friends and working out".
  • Collot, Durham, Miguno and Voss appear along with Anai looking at the recipe books that he wrote in "Little meeting and news".
  • Kabae shows up showing various photographs he has on her phone to Louis in "Little meeting and news".
  • Hana, Izumi, and Daisuke appear playing with Koka while Haida watches over them in "Little meeting and news".
  • Hana, Izumi, and Daisuke appear when their respective parents come to pick them up to go home in "After the conference".
  • Retsuko's mother and Retsuko's grandmother are seen watching the other members playing video games in "Family Time".
  • Haida and Retsuko's father are shown playing video games with Koka and later also with Retsuko in "Family Time".
  • Various characters including Haida, Retsuko, Koka, Retsuko's mother, Retsuko's father, Retsuko's grandmother, Stu, Bonnie, Mrs. Wilde, Bogo, Clawhauser, Ratchet, Clank, Alister, Fox, Falco, Disco Bear , Pop, Cub, Rory, Zorori, Ishishi, Noshishi, Legoshi and Jack see a breaking news report of something that suddenly happened in town on the news in "A New Plan".
  • Dr. Eggman appears at the end of "Getting rid of the robots" when Decoe, Bocoe and Bokkun return to his base intending to disarm them for making a plan that could have ruined his own plans.
  • Retsuko's father, Retsuko's mother, and Retsuko's grandmother appear telling Koka a story while Haida and Retsuko talk on the cell phone with Washimi and Gori in "After the battle".
  • Honey, Hugo and Morris appear on Shadow and Rouge's communicator when they call them to find out what happened in Tokyo Summer Land in "After the battle".
  • Sonic appears on Fox's communicator when Fox calls him to offer his help in stopping any of Eggman's plans in "Deciding to help".
  • Chaos and Oracle of Delphius appear after the residents of Green Hill gathered to tell them what else they discovered in "News on Mobius".
  • Pop-Pop, Gideon and Sharla are seen babysitting Judy's unnamed younger siblings and Judy's niece (Cotton) in "Meeting after the attack".
  • Washimi and Gori are shown talking on the phone about Retsuko and her family going on the beach trip in "Good news and agreeing".
  • Skye appears observing the master emerald and suddenly begins to see the silhouettes that begin to appear in it in "Good news and agreeing".
  • The relatives, friends and acquaintances of the mobians appear as silhouettes reflected in the master emerald in "Messages from Mobius".
  • Stu, Bonnie, Mrs. Wilde, Nicole, and Jerry are seen playing together as Nick, Judy, Jack, and Finnick talk to each other about what they're doing the next day in "Messages from Mobius".
  • Milly, Nelly and Roger are shown practicing magic while flying on their flying broomsticks while Finnick accompanies Zorori, Ishishi and Noshishi inside the castle in "Visit and continuing lessons".
  • Najō and Puppe are seen talking while Finnick accompanies Zorori, Ishishi and Noshishi inside the castle in "Visit and continuing lessons".
  • Kobayashi is shown sitting in the driver's seat of the limo, when Tadano tells him that he can take some time off in "Visit and continuing lessons".
  • Zororina (as a spirit) appears happily watching her son Zorori eat with his friends Ishishi, Noshishi and Finnick in "Alleviation and ready for a date".
  • Kobayashi and ENI-O appear during the stay of Nick, Haida and Tadano in the latter's limousine in "Walk and meetings".
  • Falco, Fox, Slippy, Peppy, ROB, Wolf, Leon, and Panther are seen walking down Bogo and Clawhauser walking down the opposite sidewalk from them in "Conversations".
  • Jack Savage's boss appears in her office when Skye arrives there when she asks her to come there to talk to her about something in "Conversations".
  • Nicole and Jerry are shown sleeping on Mrs. Wilde and Bonnie's respective laps when Nick, Judy, Jack, and Finnick arrive at their hotel room in "Gathering after a long day".
  • Amy, Cosmo, Knuckles, Tikal, Shadow, Rouge, Speed, Alex, Locke II, Pachacamac II, Rutan, Silver, Jewel, Falco, Peppy, ROB, Wolf, Leon and Panther appear while they are together talking about how the last ones will be Help in case of another Eggman's attack on "Gathering after a long day".
  • Tails, Flora and Slippy appear (along with Skye) started to build the first radars to locate the emeralds in "Gathering after a long day".
  • Flippy, Flaky, Fluffy, Sneaky, Mouse Ka-Boom, Denisse, Bomb, Truffles, Lammy, Mr. Pickes, Bella, Russell, Mime, and Robby appear when Disco Bear, Pop, Cub, and Rory arrive at their hotel room and They see that each one was doing different activities in "Final hours of the day (Part 1)".
  • Legoshi, Jack, Collot, Durham, Miguno, Voss, Anai, and Kabae are seen chatting when Retsuko, Fenneko, Haida, and Ookami arrive at work, and later when these four join the conversation. They appear again while at lunchtime when Haida is texting with Dokachin in "Worrying about old friends".
  • Ton, Tsubone and Komiya appear when they arrive at their work area in "Worrying about old friends".
  • Honey, Hugo and Morris appear when they arrive at the hotel room where Nick, Judy and Jack were staying and explain to them, Finnick, Stu, Bonnie and Mrs. Wilde how the radars they brought in "A lunch that brings back memories".
  • Ookami, Komiya, Tsunoda, Manumaru and Resasuke show up during work release time, when they are going to pick up their children to take them home in "Finding out about the visit".
  • Hana, Izumi, and Daisuke first appear watching TV with Koka, then returning home to their respective parents in "Finding out about the visit".
  • Most of Retsuko and Haida's relatives appear sitting in the dining room of the house talking in "Finding out about the visit".
  • Nicole and Jerry are playing with Finnick in the living room of his hotel room in "Problem fixed and continuing search".
  • Most of the mobians' relatives appear reunited when Delphius's oracle gives them the information of what they have recently learned regarding the other universe in "More news on Mobius".
  • Stu, Bonnie and Mrs. Wilde are shown looking after Nicole and Jerry as they take a short nap in "Deciding to help and preparing".
  • Fox, Falco, Slippy, Peppy, ROB, Wolf, Leon and Panther appear returning to Tokyo together with the mobians to say goodbye to them and return to their apartment to rest for the rest of the day in "Demonstration".
  • Eggman appears observing the city of Tokyo through his fly-shaped spy cameras in "Demonstration".
  • Retsuko, Fenneko, Haida, Ookami, Komiya, Tsunoda, Manumaru and Resasuke appear being watched by Eggman through their fly-shaped spy cameras as they return home after leaving work in "Demonstration".
  • Nick, Judy, Jack, Finnick, Nicole, Jerry, Stu, Bonnie, Mrs. Wilde, Bogo and Clawhauser appear among a group of people who are in the process of evacuating the city in "Big problems (Part 1)".
  • The policeman who appeared in "Songgretopia - End Of The Day" appears guiding the group that includes Nick, Judy, Jack, Finnick, Nicole, Jerry, Stu, Bonnie, Mrs. Wilde, Bogo and Clawhauser out of the city in "Big problems (Part 2)".
  • Speed, Flora, Alex, Locke II, Pachacamac II, Rutan, Silver and Jewel appear watching the inhabitants of Zootopia from the top of a building, while they evacuate the city in "Big problems (Part 2)".
  • Shachou appears observing how the new accounting employees are doing during the workday. He is later seen during the evacuation of the city in "Big problems (Part 3)".
  • Ton, Tsubone, Buffalo, Adachi, Arihiko, Bibanuma, Kara, Masashiro, Pen, Warabida, Yokosawa, Rinta and Inui appear during the city evacuation in "Big problems (Part 3)".
  • Haida, Retsuko, Jiro and Retsuko's father appear having breakfast with the family and then leaving to go to work in "Big problems (Part 4)".
  • Ookami, Fenneko, Komiya, Tsunoda, Manumaru and Resasuke appear bringing Hana, Izumi and Daisuke to each of Haida and Retsuko to take care of them and then leave for work in "Big problems (Part 4)".
• Cry into Chest: There have been two cases of this:
  • The first time when Retsuko cries after the terrible near-death experience she had, while being comforted by her grandmother, her mother, her husband Haida, and her son Koka in "Songgretopia - End Of The Day".
  • The second time when Zorori begins to cry finally letting out all the tears he had held back after his mother's death many years ago in "Video game talent. Sad memories" and "Alleviation and ready for a date".
• Deceased Parents Are the Best: There are many cases of these here.
  • John Wilde (Nick's father) passed away when Nick was 5 years old.
  • Mr. and Mrs. Savage (Jack's parents) passed away when Jack was 10 years old.
  • Zokar The Hedgehog (Sonic's father) passed away 4 months before Sonic was born.
  • Hertia The Seedrian and Lucas The Seedrian (Cosmo's parents) passed away when Cosmo was 8 years old, during the events of Sonic X.
  • Wynmacher The Echidna (Knuckles' ex-stepfather) passed away when Knuckles was 18 years old.
  • Tulum The Echidna (Tikal's mother) passed away when Tikal was 2 years old.
  • An unknown male bat (Rouge's father) passed away when Rouge was 4 years old.
  • An unknown male echidna (Rutan's biological father) passed away 4 months before Rutan was born.
  • Dr. Robotnik from Sonic Underground (Dr. Eggman's father) passed away shortly after the events of Sonic Underground and 4 years before the events of Sonic X.
  • Tyler The Rabbit (Cream's biological father) passed away when Cream was 2 years old.
  • King Bee and Queen Bee (Charmy's parents) passed away when Charmy was 2 years old.
  • Kaden and an unnamed female lombax (Ratchet's parents) passed away when Ratchet was a baby.
  • James McCloud and Vixy Reinard McCloud (Fox's parents) passed away when Fox was a child (in Vixy's case) and a teenager (in James's case)
  • An unknown female bear (Cub's mother) passed away when Cub was a newborn baby.
  • Zororina (Zorori's mother) passed away when Zorori was young.
  • Leano (Legoshi's mother) passed away when Legoshi was 12 years old.
  • Ogma (Louis' adoptive father) passed away when Louis was 19 years old.
• Declaration of Protection: Sonic assures the characters of Zootopia and Aggretsuko that their children will be protected by his own son and the children of their friends.
• Did Not Get the Girl: Manumaru went through this in the past when he had a crush on Fenneko. But since Fenneko was already dating Ookami and would later marry him, Manumaru was unable to be with her, although he would eventually develop a relationship with Resasuke.
• Disappeared Dad: Nick's father, Jack's father, Sonic's father, Cosmo's father, Rouge's father, Rutan's biological father, Dr. Eggman's father, Cream's biological father, Charmy's father, Ratchet's father and Fox's father are deceased. The current status and whereabouts of Finnick's father, Ookami's father, Washimi's father and Denisse's biological father are unknown.
  • Knuckles' ex-stepfather is deceased.
  • Louis' adoptive father is deceased.
• A Dog Named "Dog":
  • It happens with most of the Star Fox characters that appear in the story: In the case of Fox, Wolf and Panther in their first name. In the case of Slippy and Peppy in their last names.
  • With the Happy Tree Friends characters this only happens with Disco Bear and Mouse Ka-Boom.
• Dominant Species Genes: There are three cases of this with the children of the next generation.
  • Nicole Wilde (Nick and Judy's daughter): She was born a vixen, a species inherited from her father Nick.
  • Koka (Haida and Retsuko's son): He was born a red panda, a species inherited from his mother Retsuko.
  • Flora Prower and Alex Prower (Tails and Cosmo's children): They were born an alien and a fox respectively, some species inherited from their mother Cosmo and their father Tails, respectively.
  • Nick The Crocodile (Vector and Vanilla's son): He was born a crocodile, a species inherited from his father Vector.
  • Lorraine The Rabbit (Charmy and Cream's daughter): She was born a rabbit, a species inherited from her mother Cream.
  • Fluffy (Flippy and Flaky's son): He was born a bear, a species inherited from his father Flippy.
  • Bomb (Sneaky and Mouse Ka-Boom's son): He was born a mouse, a species inherited from one of his two dads Mouse Ka-Boom.
• Early-Bird Cameo: Sonic, Amy, Tails, Cosmo, Knuckles, Tikal, and their respective children have this at the beginning of the story in "Families and Children".
• Establishing Character Moment: Sonic and the other Mobians are determined to find the Chaos Emeralds before they fall into Eggman's hands in "Families and Children".
  • Nick, Judy, Jack, Finnick, Retsuko, Fenneko, Haida, Ookami, Washimi and Gori decide to help the mobians in everything they can in order to avoid a greater misfortune for the inhabitants of that dimension in "Questions And Answers".
• Exactly What It Says on the Tin: It happens with every chapter of the story.
• Explain, Explain... Oh, Crap!: This happens when the characters of Zootopia and Aggretsuko agree not to reveal to anyone about the existence of the characters of Sonic X, only for a few seconds everyone will see in the news what happened in the restaurant through a video that was taken from the security camera, revealing the existence of their new friends in "A New Refuge".
• Fan Boy: Retsuko is to a lesser extent this for Judy in "Aggretopia - New Friends", when she learns how Judy excels at her job despite the low expectations she had from her co-workers, something that Retsuko has not achieved despite the years she has been working at the company.
• Fan-Created Offspring: The children of the main characters who will have importance in the plot appear.
  • Nicole Wilde (Nick and Judy's daughter)
  • Jerry Savage (Jack and Judy's son)
  • Koka (Haida and Retsuko's son)
  • Hana (Ookami and Fenneko's daughter)
  • Izumi (Komiya and Tsunoda's daughter)
  • Daisuke (Manumaru and Resasuke's son)
  • Speed Rose The Hedgehog (Sonic and Amy's son)
  • Flora Prower and Alex Prower (Tails and Cosmo's twin children)
  • Locke The Echidna II and Pachacamac The Echidna II (Knuckles and Tikal's twin sons)
  • Rutan The Echidna (Shadow and Rouge's adoptive son)
  • Silver The Hedgehog and Jewel The Bat (Shadow and Rouge's children)
  • Nick The Crocodile (Vector and Vanilla's son)
  • Lorraine The Rabbit (Charmy and Cream's daughter)
  • Cub (Pop's son and Disco Bear's stepson)
  • Rory (Disco Bear and Pop's son)
  • Fluffy (Flippy and Flaky's son)
  • Denise (Sneaky and Mouse Ka-Boom's adoptive daughter)
  • Bomb (Sneaky and Mouse Ka-Boom's son)
  • Bella (Truffles and Lammy's daughter)
  • Robby (Russell and Mime' son)
• Fantastic Racism: Many mentions have been made of this since the Beastars characters appeared:
  • Haru and Juno refer to this as one of the problems that haunt their home universe. At the same time Judy mentions that years ago there were such problems in her dimension, but now everything had already been solved in "Meeting at the Tokyo Tower".
  • Gouhin talks to the heroes of Mobius about predation cases and racism issues against carnivores to the heroes of Mobius in "Encounter with a bodyguard".
  • Louis also references that while he talks to Retsuko, Fenneko, Haida, and Ookami; while these remember having learned of cases of predation in their dimension when they went to school in "The end of another day".
• Fish out of Water: Thanks to the Chaos Control, not only Sonic characters, but characters from Beastars and Happy Tree Friends, who come from two other different universes, end up arriving in the universe where Aggretsuko, Zootopia, Kaiketsu Zorori, Star Fox and Ratchet & Clank takes place.
  • Although the characters of Star Fox and Ratchet & Clank also fall into this category since they were teleported to planet earth by the same Chaos Control from their respective planets.
• Flashback Echo: This is how it is explained how the Sonic X characters and their children reached the dimension where Zootopia, Aggretsuko, Kaiketsu Zorori, Star Fox and Ratchet & Clank occur in "Questions And Answers".
• Fully-Dressed Cartoon Animal: All the characters of Zootopia, Aggretsuko, Ratchet & Clank, Star Fox, Happy Tree Friends, Kaiketsu Zorori, and Beastars are this. In the case of Sonic characters, this happens only with female characters.
• Full-Name Ultimatum: Jack and Judy do this with Nick, when instead of berating Finnick for going to a bar to have some alcoholic drinks from Japan instead of doing what he should do, otherwise, he berates him for not telling him about that bar before in "The end of another day".
• Funny Animal: Almost most of the characters that appear here are this.
• Furry Confusion: The characters of Zootopia and Aggretsuko are confused when hearing from the Sonic characters that the animals that come from the dimension from which Dr. Eggman comes from are not anthropomorphic and they are thoughtful about what their own species would look like there in "Questions And Answers".
• Furry Reminder: Jack wags his tail in a happy gesture, like dogs do in the real world, when he hears Retsuko, Fenneko, Haida, Ookami, Komiya, Tsunoda Manumaru and Resasuke affirm that they are going to a small meeting to help them raise their spirits in "Trying to help, notice, entering the base".
  • Collot, Durham, Miguno and Voss wag their tails happily when Anai proposes to cook them a meal one day, after showing them his recipe books in "Little meeting and news".
• Fusion Fic: In this story Kaiketsu Zorori, Aggretsuko and Zootopia share a universe, they occur on the same planet earth and are contemporaneous. Only while the Kaiketsu Zorori and Aggretsuko events occur in Japan, the Zootopia events occur in the United States.
  • Star Fox and Ratchet & Clank occur in the same universe, but on different star systems from each other.
  • Sonic characters fit this trope in part due to the fact that Sonic Underground took place 4 years prior to the events of Sonic X.
• Half-Dressed Cartoon Animal: This only happens with Sonic, Tails, Knuckles, Shadow, Speed, Alex, Locke II, Pachacamac II, Rutan and Silver.
• Happily Adopted: There are two cases of this here:
  • This happens with Rutan, who after being adopted by Shadow and Rouge 18 years before the events of story has had a happier life with them than he would have had with his biological family.
  • This also happened with Denisse who was adopted by Sneaky and Mouse Ka-Boom 2 years before the events of the story.
• Happily Married: This happens with most of the couples that appear in the story. But mainly with Haida and Retsuko, Ookami and Fenneko, Sonic and Amy, Tails and Cosmo, Knuckles and Tikal.
  • The other couples that appear in the story also fall into this trope as Stu and Bonnie, Ton and his unnamed wife, Kabae and her unnamed husband, Komiya and Tsunoda, Anai and Hakumi, Shadow and Rouge, Vector and Vanilla, Charmy and Cream, Disco Bear and Pop, Flippy and Flaky, Sneaky and Mouse Ka-Boom, Truffles and Lammy.
  • In the cases of Nick x Judy x Jack, Manumaru x Resasuke, and Russell x Mime, although they are not legally married, they live together and even have children.
• Heroic Lineage: This happens with Speed, Flora, Alex, Locke II, Pachacamac II, Silver, Jewel, Nick and Lorraine as they are children of the main protectors of their planet.
  • Rutan has this, from his adoptive parents.
• Honorary Uncle: There are some cases:
  • Finnick, Bogo and Clawhauser are this for Nicole Wilde (Nick and Judy's daughter) and Jerry Savage (Jack and Judy's son)
  • Ookami, Fenneko, Washimi, Gori, Tadano, and Puko are this to Koka (Haida and Retsuko's son)
  • Haida, Retsuko, Washimi and Gori are this to Hana (Ookami and Fenneko's daughter)
  • Sneaky and Mouse Ka-Boom are this to Fluffy (Flippy and Flaky's son)
  • Flippy and Flaky are this to Denisse and Bomb (Sneaky and Mouse Ka-Boom's children)
• Ho Yay: Some ships agree with this trope.
  • Bogo and Clawhauser
  • Manumaru and Resasuke
  • Alister and Ratchet
  • Falco and Fox
  • Peppy and Slippy
  • Disco Bear and Pop
  • Sneaky and Mouse Ka-Boom
  • Russell and Mime
  • Legoshi and Jack
  • Collot and Voss
  • Durham and Miguno
• Inter Generational Friendship: As seen from Aggretsuko's events, Washimi and Gori remain friends with Retsuko, despite being 10 to 20 years older than her, in recent years they also became friends with Haida, Fenneko, and Ookami. And during the events of the story they become friends with Nick, Judy, Jack, Finnick, Sonic, Amy, Tails, Cosmo, Knunkles and Tikal.
• Interspecies Adoption: There have been two cases here.
  • Rutan (an echidna) was adopted 18 years ago by Shadow (a hedgehog) and Rouge (a bat).
  • Dennise (an cat) was adopted 2 years ago by Sneaky (a chameleon) and Mouse Ka-Boom (a mouse).
• Interspecies Romance: This contains many interspecies pairs between characters of fandoms that appear in there, either of the main fandoms or of the ones that only make cameos.
  • Nick ^note red fox and Judy ^note rabbit and Jack ^note jackrabbit(This couple would be partly interspecies only on the side of Nick and Judy, but not on the side Jack and Judy) (Wilde Hopps / Savage Hopps / Wilde Hopps Savage)
  • Bogo ^note cape buffalo and Clawhauser ^note cheetah
  • Haida ^note hyena and Retsuko ^note red panda (Haid Suko)
  • Ookami ^note maned wolf and Fenneko ^note fennec fox (Ooka Nneko)
  • Komiya ^note meerkat and Tsunoda ^note gazelle
  • Manumaru ^note pallas cat and Resasuke ^note red panda
  • Anai ^note japanese badger and Hakumi
  • Tadano ^note donkey and Puko^note cougar
  • Tails ^note fox and Cosmo ^note alien (Tails Mo)
  • Shadow ^note hedgehog and Rouge ^note bat (Shad Ouge)
  • Vector ^note crocodile and Vanilla ^note rabbit (Vect Nilla)
  • Charmy ^note bee and Cream ^note rabbit (Char Eam)
  • Falco ^note bird and Fox ^note fox
  • Peppy ^note rabbit and Slippy ^note toad
  • Wolf ^note gray wolf and Krystal ^note fox
  • Flippy ^note bear and Flaky ^note porcupine
  • Sneaky ^note chameleon and Mouse Ka-Boom ^note mouse
  • Truffles ^note boar and Lammy ^note sheep
  • Russell ^note sea otter and Mime ^note deer
  • Arthur ^note panther and Elzie ^note cat
  • Roger and Milly ^note porcupine
  • Legoshi ^note gray wolf and Jack ^note Labrador retriever
  • Collot ^note english sheepdog and Voss ^note fennec fox
  • Durham ^note coyote and Miguno ^note hyena
• Jerkass: Ton and Tsubone. Despite the years that have passed since the events of Aggretsuko, they still behave the same way towards Retsuko as they have in years.
• Jerkass Has a Point: Ton replaces Retsuko, Fenneko, Haida and Ookami with Anai, Kabea, Warabida and Yokosawa to take charge of teaching new employees more things to learn in the work area for the rest of the day due to how distracted they were with their personal problems, since he did not need the new employees to fail in their work because of distracted employees. Although without directly telling them why he replaced them in the first place in "Time between couple".
• Jerk with a Heart of Gold: When they go back to work Ton and Tsubone leave Retsuko the same amount of extra work that they have always left her, but she notices that they have also left the same amount of work for Fenneko, Haida and Ookami. She began to suspect that this was the way Ton and Tsubone had to make them think about something other than the traumatic situation they experienced the weekend, and although Retsuko was not one hundred percent sure, that was exactly what Ton and Tsubone did in "The end of another day".
• Large Ham: Eggman.
• Leaning on the Fourth Wall: This happens in "The Search (Part 4)" and "Family memories" when Finnick thinks that the adventures that Zorori, Ishishi and Noshishi lived through seem to come from children's stories, making an indirect reference to the source material of the three of them.
• Like Father, Like Son: Four cases have been seen so far.
  • Haida and Koka both like to play music together.
  • Retsuko and Koka both like to sing Death Metal and it's a hobby they don't like anyone knowing about.
  • Sonic and Speed have the speed of running at the speed of sound, that's why they like to run together to spend their free time. They also like to eat chili dogs together. And they like to play music together.
  • Amy and Speed have the ability to summon Piko Piko Hammers to take on enemies.
  • Tails and Flora have a taste for mechanics and like to repair and build gadgets.
  • Tails and Alex have the ability to fly with their two tails and use it for important situations.
  • Cosmo and Alex really like gardening and taking care of plants.
  • Knuckles and Locke II & Pachacamac II take their job of protecting the master emerald and protecting the people of Angel Island very seriously.
  • Cream and Lorraine like to collect flowers and make wreaths for their friends and family.
• Love Triangle: At some point in the past there was this between Nick, Judy and Jack, before they decided to have a polyamorous relationship.
• Missing Mom: Jack's mother, Cosmo's mother, Tikal's mother, Charmy's mother, Ratchet's mother, Fox's mother, Cub's mother, Zorori's mother and Legoshi's mother are deceased. The current status and whereabouts of Finnick's mother, Ookami's mother, Washimi's mother and Denisse's biological mother are unknown.
• Mood Whiplash: There have been two cases of this:
  • The characters of Zootopia and Aggretsuko go through this, when after meeting and becoming friends, the whole atmosphere of happiness disappears when Dr. Eggman attacks the restaurant where they are having lunch to get the chaos emeralds that the children had in "Aggretopia - New Friends".
  • The characters from Zootopia, Aggretsuko (except Haida, Retsuko, Koka, Washimi and Gori) and Sonic were having a fun day in Tokyo Summer Land, when suddenly they are attacked by Eggman's robots which throw bombs at him that in a first At the time they thought they would cause harm in "Getting rid of the robots".
• Mythology Gag: Finnick's thoughts that the past adventures of Zorori, Ishishi, and Noshishi seem to come from children's stories, when in the real world they actually come from children's books.
• Nervous Wreck: This happens with Retsuko when she learns that her mother and grandmother could discover what she has been doing after she decided to help Sonic in his mission to find the people who came to the city through chaos control in "Surveillance and Reunions" and "Leaving Zootopia and fake book club".
• "Not So Different" Remark: There are some cases of this:
  • This happened in the past with Judy and Retsuko when they started working as a police officer and an accountant respectively, where both had high expectations at first.
  • Haida, Retsuko, Koka, Sonic and Speed like music; and although their tastes in genres are different (Haida the punk, Retsuko and Koka the Death Metal, Sonic and Speed the Rock) they like in their free time to listen or sing their favorite musical genres as a hobby.
• Odd Couple: Some couples that appear in the story, but the main ones are:
  • Nick, Judy and Jack, since they began as a love triangle before they decided to try a polyamorous relationship, which many people partly consider strange, but they are happy with the decision that they took, even their family and friends accept the relationship.
  • On the other hand, there would be Tails and Cosmo as he is a fox and she is an alien who looks like a mix between a human and a plant, but in the end they are both happy too.
• Odd Friendship: Zorori, Ishishi and Noshishi with Finnick.
• Offscreen Moment of Awesome: Every time the inhabitants of Mobius tell their past adventures to the inhabitants of Zootopia or the inhabitants of Japan.
• Oh, Crap!: This is the reaction of the Zootopia and Aggretsuko characters to the moment of their first encounter with Eggman and his robots in "Aggretopia - New Friends".
• Older Than They Look: This happens with Tikal and Shadow.
  • Tikal physically appears to be 36 years old, when chronologically it is 4000 years old.
  • Shadow physically appears to be 37 years old, when chronologically he is 72 years old.
  • Subverted with Finnick, Ishishi and Noshishi who looks younger than they really are.
• O.O.C. Is Serious Business: Sonic who always prefers to stop Eggman as quickly as possible no matter what, suggested that they appear until he appears instead of looking for him and stopping him beforehand, something that surprised the other mobians in "Mobian communication".
• Parental Substitute: There are two cases here:
  • Shadow and Rouge are this for Rutan.
  • Sneaky and Mouse Ka-Boom are this for Denisse.
• Pink Girl, Blue Boy: Amy and Sonic are this.
• Polyamory: Nick Wilde, Judy Hopps and Jack Savage have a polyamorous relationship for a few years and of which there are 2 children born: Nicole Wilde (Nick and Judy's daughter) and Jerry Savage (Jack and Judy's son) Although there is no official marriage between them.
• Pride: All the characters take pride in what they decide:
  • Sonic, Amy, Tails, Cosmo, Knuckles, Tikal, Shadow and Rouge to stop Eggman's plans and make the world a safe place for innocent beings, including his children.
  • Nick and Judy to be policemen and keep order in their city.
  • Jack to be a secret agent who also defends the innocent.
  • Finnick to do his dubious busines.
  • Retsuko, Fenneko, Haida and Ookami to their jobs as accountants.
  • Gori to be the director of the marketing department.
  • Washimi to keep the company like he must be intimidating his boss into doing the right things.
• Red Oni,Blue Oni: That's how it's been for Zootopia's characters in recent years.
  • Judy with Nick.
  • Nick with Jack.
  • Finnick with Judy and Jack.
  • Sonic with Shadow.
• Running Gag: In "A New Refuge" every time the characters are about to agree on how they are going to look for the other people who came to the city for chaos control, something interrupts the conversation.
• Shipper on Deck: By means of a flashback in "Sontopia - Visit to the Agency and Memories of the Past" Nick and Judy inadvertently became that, since without suspecting that Bogo and Clawhauser had developed feelings for each other and did not know how to express it, thought that it was something that divided their friendship they brought them together in a place where later they would end up declaring their feelings without Nick and Judy knowing.
• Straight Gay: This happens with Bogo and Clawhauser, who are a couple, but no one who works with them has realized that yet, nor that they are gay in the first place.
• The Ghost: Gazelle, Bucky Oryx-Antlerson, Pronk Oryx-Antlerson, Fenneko' parents, Haida's parents, Gori' parents, Washimi's ex husband, Washimi's sister, Inui, Chris Thorndyke, Nelson Thorndyke, Lindsey Thorndyke, Chuck Thorndyke, Gosha, Fara Phoenix, Miyu, Fay, Bill Grey, Katt Monroe, Sabre, Lucy Hare, Dash Bowman and Krystal are this.
• The Name Is Bond, James Bond: This is how Jack Savage introduces himself, when he meets Haida and Ookami in "Aggretopia - New Friends".
• The Powerof Friendship: All the characters have helped each other on various occasions in the past and continue to do so today.
• The Reveal: The Yoga Instructor since he met them the previous night knew that Alister, Ratchet and Clank are from another planet and that Clank is not a simple backpack but a robot. Alister, Ratchet, and Clank found out about this when they got to his apartment and read a paper the yoga instructor handed them in "Worries about friends and working out".
• The Voiceless: Resasuke, like most of Retsuko's co-workers, and most of the inhabitants of Mobius are this.
• Throw the Dog a Bone: This happened in a way with Nick, Jack, Haida and Amy in the past. When Nick and Jack fell in love with Judy at the same time; when Haida fell in love with Retsuko; and when Amy fell in love with Sonic. They went through a lot of embarrassing and stressful things in a way, until Judy, Retsuko, and Sonic gave them a chance to date them.
• Time Skip: It is been 21 years since the events of Sonic X, while 6 years have passed since the events of Happy Tree Friends. The amount of time that has passed since the events of Zootopia, Aggretsuko, Beastars, Star Fox, Kaiketsu Zorori, and Ratchet & Clank is undetermined.
• Took a Level in Badass: Judy (along with Jack) uses a laser gun to shoot down the Eggmobile containing Eggman's robots, the first time she's used it despite having had it for a few years in "Getting rid of the robots".
• Trademark Favorite Food: Sonic and Speed have this with the chilli dogs.
• True Companions: There are several cases:
  • Nick, Judy, Jack, and Finnick are this, even after the first three formed a polyamorous relationship.
  • Retsuko, Fenneko, Washimi and Gori are this between them, and the last two are also for Haida and Ookami.
  • Haida and Ookami are this to each other, and the two are too to Washimi and Gori.
  • Sonic, Tails and Knuckles are this to each other.
  • Amy, Cosmo and Tikal are this to each other.
  • Zootopia, Aggretsuko and Sonic X characters became in this with each other, after becoming friends.
  • Ratchet and Clank are this to each other.
  • Fox McCloud, Falco Lombardi, Slippy Toad and Peppy Hare are this. Even after Falco and Fox became a couple, as did Peppy and Slippy.
  • Wolf O'Donnell, Leon Powalski and Panther Caroso are this.
  • Flippy, Sneaky and Mouse Ka-Boom are this, even after the last two formed a relationship.
• Truth in Television: There are some cases of these.
  • The reporters trying to interview the characters of Zootopia and Aggretsuko, after Dr. Eggman's attack and the appearance of the heroes, after which they were a bit confused and scared after what has happened to them all day in "Songgretopia - End Of The Day".
  • During the game of hide and seek, Alex finds his friends using his hearing. In nature, foxes have a fairly developed sense of hearing in "Songgretopia - Children's Time".
  • During the evacuation of the city; Legoshi, Jack, Collot, Durham, Miguno, Voss, Fenneko, Haida, Ookami and Manumaru use their sense of hearing to know if there is something dangerous happening nearby. In nature, their respective species have a good sense of hearing in "Big Problems (Part 3)".
• Unnamed Parent: Nick's mother, Jack's parents, Retsuko's parents (and grandmother), Fenneko's parents and Gori's parents fall into this category.
• Walking Shirtless Scene: It happens with Knuckles and his two sons Locke II and Pachacamac II, who wear tribal clothes where they are shirtless since their first appearance in "Families and Children".
  • Locke, Pachacamac, Kneecaps and Gabor also wear tribal clothes where they are shirtless since their first appearance in "Mobius Part 1".
  • Espio wear ninja clothes where him is shirtless since his first appearance in "Mobius Part 1".
  • Big wear a pair of pants with suspenders where him is shirtless since his first appearance in "Mobius Part 1".
  • When he gets up from sleeping with Judy, and goes to see that Nick and Finnick are still asleep in the living room and then wakes them up by pouring cold water on their faces, at all times Jack is shirtless in "Friday in the morning".
  • When they arrive at Tokyo Summer Land in "Day at the pool", and put on their swimsuits to get into the pool; Nick, Jack, Finnick, Jerry, Sonic, Tails, Knuckles, Shadow, Speed, Alex, Locke II, Pachacamac II, Rutan and Silver are shirtless, although Knuckles, Locke II and Pachacamac II are always shirtless, even with their normal outfits.
  • In "Family Time", Nick, Jack, Finnick, Jerry, Sonic, Tails, Knuckles, Shadow, Speed, Alex, Locke II, Pachacamac II, Rutan and Silver are still shirtless during their stay at Tokyo Summer Land. When Ookami arrives with his family and puts on his swimsuit he also becomes shirtless.
  • In "Getting rid of the robots" during the confrontation against Eggman's robots; Nick, Jack, Finnick, Jerry, Ookami, Sonic, Tails, Knuckles, Shadow, Speed, Alex, Locke II, Pachacamac II, Rutan and Silver are still shirtless wearing their swimsuits.
  • In "After the battle" after got rid of Eggman's robots; Nick, Jack, Finnick, Jerry, Ookami, Sonic, Tails, Knuckles, Shadow, Speed, Alex, Locke II, Pachacamac II, Rutan and Silver are still shirtless wearing their swimsuits.
• World of Funny Animals:: All characters come from this kind of world, with the exception to some extent of the characters in Beastars and Happy Tree Friends.
• Would Hurt a Child: The moment Eggman threatens the children of Zootopia and Aggretsuko characters, that if they do not give him the Chaos Emeralds, he himself would take care of ending them by launching missiles and even after obtaining the emeralds, Eggman still decides launch the missiles at both children, their parents and their parents' friends between the end of "Aggretopia - New Friends" and the beginning of "Songgretopia - The Heroes".