While Paper Mario games are known in general for their FunnyMoments, there are some parts of them that could only have been written by an individual with a Pure Heart.
* The toads in Mushroom Kingdom all love Mario and trust him throughout the game.
* When you put a Scarf on one snowman and a bucket on another, they'll grant you entry to the Crystal Palace [[spoiler:and reward you with 4 Mushrooms and an Ultra Shroom the next time you spend the night at the Shiver City inn.]]
* [[https://www.youtube.com/watch?v=Sl-m7wSQjag Mario and Peach's Theme]] that plays at the very end.
* The citizens of the Mushroom Kingdom all wishing for the Princess to be alright as you ascend to the final level.
* Peach wishing for the Star Beam to gain power after Bowser cancels it out.
* Try talking to every NPC on the way to Peach's Castle after the final fight. They're all so happy to have things back to normal and so thankful to Mario for everything he's done.
[[folder:The Thousand-Year Door]]
* When you defeat Hooktail, she coughs up Koops' dad Koopley, who has been living inside the dragon's stomach for 10 years, making a heartwarming reunion ensue.
* Another one happens when you free the other 90 Punies. Punio reunites with his little sister Petuni, who gives him a Dried Shroom. It was supposed to be a Mushroom, but she and the other Punies were imprisoned for so long. He eats it anyway, even though his disgust at the flavor is practically visible. What makes the scene even more precious is Punio embracing Petuni, much to her embarrassment. The two siblings show up at the very end to wish you and Peach farewell... and they have ''fresh'' Mushrooms this time.
* Another moment of heartwarming occurs after you defeat [[spoiler: Macho Grubba]], when it is revealed that X is [[spoiler: Jolene]], who [[spoiler: has sent Mario messages on his Mailbox SP because her brother, Prince Mush, has vanished and Grubba was responsible. Prince Mush came back and reunited with his sister.]]
* How can you forget Admiral Bobbery? [[spoiler: A letter written by his dead wife finally convinces him to return to the seas after a long, tear-invoking scene.]]
** And because of this, he helps save the world. It isn't hard to imagine that Scarlet would be proud of him.
* [[spoiler: Vivian]] deciding to stay on your side in Chapter 4's climax.
** Especially when the game decides to inform you: [[spoiler: Vivian has REALLY joined your party now!]]
* Before fighting the final boss, there's a sequence where you see characters sending encouraging messages/thoughts/whatever to Mario before facing the aforementioned boss, which is is definitely heartwarming in itself. See it here: https://www.youtube.com/watch?v=LmXQvMkamhQ
** One that appears several times over, 'written' in green is "You go bro."
** Even better, said person can also be in the audience during your adventure. Including after the above point. Even though he's supposed to be on his own adventure he still comes out to support Mario to the end.
* The whole ending of the game, staring with [[spoiler: the initial good-byes of all the characters at the harbor, showing how all Mario's partners have grown over their adventure. Then, Goombella's e-mail tells Mario how everyone is doing, how everyone's lives got better because of Mario.]]
** Prior to that, for similar reasons, the most uplifting part of the HopeSpot scene during the final fight might not even be hearing the good wishes of all the friends and admirers Mario has made over the region - a large number of the speech bubbles that start filling the screen in the cut back to the palace are cheers for his by then definitely player-beloved ''partners''.
** Especially Vivian, who prior to her HeelFaceTurn was fully in league with the Shadow Sirens and the X-Nauts, and likely didn't have friends or acquaintances anywhere else. Despite that, there are people out there who remember her as much as they do the other partners, and are cheering just as loudly for her during that scene.
* [[PlayableEpilogue After beating the game]], a request at the trouble center opens up, which involves you helping Bub to make up with his mom after a fight. The letter Bub writes to her as well as his mother's reaction to it is truly touching.
* It's a small one, but the fourth cursed chest thanking Mario for letting him give a huge speech was touching.
* This line from Flavio towards the end of Chapter 5 just before he [[spoiler: asks Mario to take him to the Pirate Spirit Cortez (the chapter boss) to bargain for use of his ship to defend the crew from the X-naut vessel attacking the beach]]:
--> '''Flavio:''' Hey! I may be a coward and a cad, but I still lead you! I have a duty to protect you!
[[folder:Super Paper Mario]]
* The entire backstory. Yes, the whole darn thing.
** But this one takes the cake. [[spoiler: "A world without her is empty... a ''life'' without her is empty."]] AWWWW.
* When Luvbi told her parents she loved them before turning into her true form, even after being hurt about the truth. Awh.
** And then [[spoiler:ThePowerOfLove prevailed and despite Luvbi being a pure heart, she is at her parents' side at the end of Chapter 7-4]]
* In the intro, you could see that Mario has group pictures of his partners from both games inside his house.
* The entire ending is one big heartwarming moment, but there's a subtle one right as everybody (minus Peach and Merlon) leave the stage. You see Bowser try to barrel through the crowd, the minions turning around and leaving... and Mario turns around to face Luigi, who nods and follows him off screen. Particularly touching, after that final boss...
** [[spoiler:Bowser, Peach, and Luigi's BigDamnHeroes, which finally triggers the Pure Hearts to negate Bleck's Chaos Heart-based invincibility.]] Likewise, unlike most villains in NotSoInvincibleAfterAll situations, Bleck is genuinely proud of them for being able to pull it off (though this one does overlap with TearJerker -- he's after SuicideByCop).
** Pretty much everything after the fight with Bleck, except for when [[spoiler: Dimentio]] is on screen. We have [[spoiler: Nastasia taking Dimentio's attack for Bleck; Tippi, Bleck, O'Chunks, and Mimi showing so much care for each other that the Pure Hearts are revived to weaken Dimentio; and Tippi and Bleck's Heroic Sacrifice where they reaffirm their love for each other, all leading up to the last scene mentioned right above.]]
** [[spoiler: The end screen is the piece de resistance. Blumiere and Timpani, returned to their true selves and together at last, standing on a [[GhibliHills Ghibli Hill]] as their flashback theme plays and the wind blows. They embrace, then walk over the hill together out of sight.]]
* In World 5, Mario and co. find a crag named Gabbro hiding in the Floro Caverns with a Pixl named Dottie. Turns out Dottie was helping him hide because she sensed his fear and kept him company until Mario found her. Even after her and Gabbro part ways, he expresses his gratitude towards her and she (in a rather eloquent manner) laments how his absence affects her.
* In World 7, the scene where Luigi and Mario reunite.
* Talking to Red and Green after saving the world shows in spite of their disdain for each other's choice in clothing that had driven a wedge between them, they really care about one another and want to make amends.
** Likewise, talking to Old Man Watchitt shows he wishes Bestovious lived in town so that they could talk more often as even after all the trouble they've had over the years he still considers him his friend.
** Visiting Squirps in the Whoa Zone has him recounting how sad he was that he had to leave his mother, but that he put on a brave face because of how big a responsibility he had. He goes on to promise her that he will restore their kingdom someday - a pretty big dream for what seems to be a very young child. Likewise, tattling Squirpina's statue has Tippi state that she is always watching over her son. ''Awww...''
[[folder: Paper Mario: Sticker Star]]
* Saving the Toads causes them to sincerely thank you, and even help you out at times.
* Bouquet Gardens has a Toad crying over a former flower patch (which was blown away by the Fan Thing). [[spoiler:Paperizing three Fire and/or Ice Flower stickers will cause the flowers to grow back. After this, the Toad proceeds to happily water the new flowers and gives you an HP Up heart]].
* Wiggler is so happy once Mario helps him out in Chapter 3, that's pretty heartwarming. It doesn't stop there either, [[spoiler:Wiggler grows up into Flutter, and helps Mario get to World 6 in order to return the favor]].
* What does Mario do when [[spoiler:he has all of the Royal Stickers and gets to make his wish? Restore Kersti back to life]]. Aww.
* The credits sequence shows everyone in the game happy and smiling, even [[spoiler: [[AntiVillain Mizzter Blizzard]], who has come back to life]].
[[folder:Paper Mario: Color Splash]]
* Up until her kidnapping, Peach can heal Mario to full health for free if he visits her.
** And well after, once you complete the Dark Bloo Inn sidequest, the inn staff will let you stay overnight despite being booked by letting you sleep in the lobby.
* Visiting a purple Toad on a rooftop will have him wax nostalgic about other friends, including a friend named Piper, who gave him a seed to plant so when it was fully-grown they'd all reunite like they did when they were young. The farther you progress, the closer the wish comes to coming true.
* A Soggy Shy Guy is bullied for not being part of the crowd, but determines to be himself and stay a single-layer Shy Guy of awesomeness. He also thanks Mario for saving him from the waterwheel.
* Justice Toad is ecstatic over actually being able to help, declares that he ''does'' have superpowers, and Huey is sincerely grateful to him.
* The professor's joy at being reunited with Princess, his pet Chain Chomp.
* Trying to paint areas too big for Mario to handle will have Huey tell Mario he can't do it, but not to let it get him down.
* Stepping across the six Green Rescue Squad members (they're making a bridge) causes them to say "Thank you so very much!" in sequence.
* On the Sunset Express, a Shy Guy decides to speak with Mario. He laments that he dreamed of going to a far away place, but being in Bowser's army means he has to give up on his dreams. Towards the end of the conversation, he realizes the next time he and Mario meet, they're more likely gonna meet as enemies, but thanks him for hearing him out.
* At Cape Starlight, Mario and Huey see a shooting star. Mario wishes for Peach to be okay, while Huey wishes for the Big Paint Stars to be rescued. Immediately after he makes the wish, the orange Big Paint Star appears.
* Bowser visibly enjoying himself during the end-credits parade. After all his DesignatedMonkey-ism and DesignatedVillain-y in the story, it's nice to see him get such a ThrowTheDogABone here.
* If you get 100% completion, [[spoiler: Huey does come back just as he promised at the ending.]]
* It's subtle, but the World Map music gets a little livelier each time you restore a Big Paint Star, which is easier to hear if you [[https://www.youtube.com/watch?v=ncHbeq64Tz8 listen to each variant back to back]]. In that sense, you can actually hear your efforts restoring the island back to its former glory.
* After seeing that the train that he helped rebuild won't be sent to the dump and it was actually well-liked, the train depot manager regained the motivation of continuing on his career and comes out of retirement with his coworkers giving him a hip-hip hooray toss in the air.