History Fridge / SonicTheHedgehog

* In ''VideoGame/SonicGenerations'', Classic Sonic sees Modern Sonic do a mid-air boost and, in the cutscene before the end credits, he attempts to perform one. So he started to learn the boost by doing it in mid-air, not running on the ground like Modern Sonic can also do. Well, the last skill Classic Sonic can learn after getting every red ring star on Planet Wisp is the homing attack. ''VideoGame/SonicTheHedgehog4'' takes place after Sonic had grown into his modern look and he knew how to do a homing attack. Because when he picked up on doing a boost in mid-air in his Classic form, he subconsciously started to learn how to do a homing attack as well. Furthermore, in the UsefulNotes/{{PS3}}[=/=]UsefulNotes/{{Xbox 360}} version of ''VideoGame/SonicUnleashed'', once you get the Air Boost Shoes, it allows you to do a mid-air boost (like what Classic Sonic would see a few games later) by doing what is essentially a homing attack if you don't lock on to something. So the homing attack is basically the same thing as a mid-air boost, which Classic Sonic adapted to learn the homing attack by the time he grew into Modern Sonic.

** ''VideoGame/TheMurderOfSonicTheHedgehog'', while acknowledging its questionable status of canon, has an explanation; Eggman explains that most of his badniks are designed with basic AI that only tries to kill Sonic (or any of his friends that run into them), but more advanced badniks like his trains have more advanced intelligence to match, specifically referring to his passenger trains as being able to function completely autonomously, which, in at least one case, resulted in the AI developing emotions and a genuine friendship with the train's conductor. It can be assumed that badniks with other objectives have more advanced AI as well; Gamma was sent out to hunt down and bring back Froggy and Omega was assigned to watch Shadow and keep him in his pod if he escapes.

*** The Egg Pawns don't really have their own sapience, so when they are charmed by Rouge, the animals inside them are charmed. As stated below with the entry regarding "The Murder of Sonic the Hedgehog," most badniks have only basic AI that boils down to "Kill Sonic and friends." We don't see them release animals when they're destroyed in "Sonic Generations," but in other games we do see them release animals when they're destroyed, so we can just assume that they have animals in them and the games sometimes just forget to show that detail.

** ''VideoGame/TheMurderofSonictheHedgehog'', while acknowledging its questionable status of canon, has an explanation; Eggman explains that most of his badniks are designed with basic AI that only tries to kill Sonic (or any of his friends that run into them), but more advanced badniks like his trains have more advanced intelligence to match, specifically referring to his passenger trains as being able to function completely autonomously, which, in at least one case, resulted in the AI developing emotions and a genuine friendship with the train's conductor. It can be assumed that badniks with other objectives have more advanced AI as well; Gamma was sent out to hunt down and bring back Froggy and Omega was assigned to watch Shadow and keep him in his pod if he escapes.

** ''The Murder of Sonic the Hedgehog'', while acknowledging its questionable status of canon, has an explanation; Eggman explains that most of his badniks are designed with basic AI that only tries to kill Sonic (or any of his friends that run into them), but more advanced badniks like his trains have more advanced intelligence to match, specifically referring to his passenger trains as being able to function completely autonomously, which, in at least one case, resulted in the AI developing emotions and a genuine friendship with the train's conductor. It can be assumed that badniks with other objectives have more advanced AI as well; Gamma was sent out to hunt down and bring back Froggy and Omega was assigned to watch Shadow and keep him in his pod if he escapes.

* In ''VideoGame/{{Sonic Rush|Series}}'', Sonic's bosses, which are Eggman Nega's, feel a lot harder than Blaze's bosses; the characters have the same mechs, but Eggman Nega feels harder — why? It's because Eggman Nega doesn't have the same moral restraint that Eggman does! He's ''actively trying'' to kill his enemy, while Eggman uses his [[OneHitKill nas]][[NoOneCouldSurviveThat tier]] moves as last resorts.
* Chaos Control could possibly be either a ShoutOut or an unintentional reference. Chaos Control, how about [[Series/GetSmart KAOS CONTROL]]. Made better by the fact that [=SA2=] wasn't developed in Japan.

*** Sonic Drift series, Sonic Riders series, SEGA All-stars Racing series: Yes, Sonic can run faster than the dinky go-karts, airboards, and convertible racers. He still gets a ride anyway to give the others a chance.

* The games are known for having ''SugarWiki/AwesomeMusic'', and one definition of the word "sonic" is "pertaining to sound." While it's obviously a coincidence, it's still really apt.

* Infinite’s theme song has MeaningfulLyrics in more ways than one. Namely, the “This is an illusion” lyric, which foreshadows the [[MindRape Phantom]] [[YourMindMakesItReal Ruby’s]] [[MasterOfIllusion true power]].

* In ''VideoGame/SonicForces'', imagine [[EtTuBrute how Rouge felt]] when Shadow (seemingly) joined the enemy.

* ''VideoGame/SonicHeroes'': The reason Team Rose has easier levels, with less enemies etc, is because they're the slowest, and the other teams have already gone through the levels before them, thus wiping out most of the enemies already.

* Metal Sonic is a robot with one specific purpose: eliminate Sonic. If his finger wag right before the race with him in [[VideoGame/SonicTheHedgehogCD his debut]] is any indication, he also has Sonic's cocky attitude. He's perfectly confident in his abilities. And then he slams face-first into a wall. As time goes on, he keeps losing over and over again. It's no wonder he {{s|anitySlippage}}napped in ''VideoGame/SonicHeroes'': His constant failures [[BetaTestBaddie completely shattered his ego]].
* In ''VideoGame/SonicForces'', imagine [[EtTuBrute how Rouge felt]] when Shadow (seemingly) joined the enemy.

* It felt odd that in ''Sonic and the Black Knight'', the three Knights of the Round Table were based on Shadow (Lancelot), Knuckles (Gawain), and Blaze (Percival). It felt especially odd since Blaze is a female cat. Then, it was clear: In the regular series, Shadow, Knuckles, and Blaze all take their task very seriously. As a result, they're perfect for the roles, as being a knight in the Middle Ages meant taking such a role just as seriously. Tails as the blacksmith had always felt obvious, though.

* Why are a lot of the boss machines in ''Sonic 1'' so mundane compared to the later ones in ''Sonic 2'' and ''3''? Robotnik didn't expect any competition at first. When he realized someone was opposing him, and coming in ''very fast'', he grabbed what he could, stuck it on the Eggmobile, and hoped for the best. By the time ''Sonic 2'' comes around, he's had time to prepare for the little blue nuisance that wrecked his operation the first time, allowing his craft to plug into various other machines or accept direct attachments that pop off with ease for a quick escape.
** However, canonically, ''Sonic 1'' isn't the first time Sonic and Eggman clashed. I personally like Taranea's take that Sonic was actually somewhat crippled by an injury that occurred shortly before the events of that game, and that's why he couldn't Spin-Dash. Going by this logic, perhaps Eggman thought Sonic was dead or incapacitated and wasn't expecting Sonic to still be able to oppose him despite getting badly hurt on their last go-round.

* The reason Sonic couldn't go super in the first game is because there were only 6 Chaos Emeralds instead of 7.

* This one admittedly might be obvious to others, but why is the infamous port of the original game to the Game Boy Advance called ''Sonic the Hedgehog Genesis'', when the "Genesis" part would already be implied (e.g. by the box art)? Because [[VideoGame/SonicTheHedgehog2006 an identically-titled game]] was released the very same day.

* In ''Anime/SonicX'', during the episode where Cosmo and Chris are captured, Sonic transforms into a new "dark form." While this may seem like an AssPull at first, one must take this into account — they are surrounded by (duplicate) Chaos Emeralds. The Chaos Emeralds have two types of energy — positive and negative. Positive is activated by those pure of heart, while those who are consumed by rage will use the negative side. When thinking of Sonic's state of mind, he was quite angry, no? That wasn't some kind of hidden demon locked within his heart, or some new kind of technique he had learned — Sonic had just used the negative energy of the Chaos Emeralds!