!!Administrivia/SpoilersOff for moments pages!
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* When you are looking at the photo album, shake your 3DS. Characters and sound effects pop up out of nowhere, and the photos act like a pop-up book!
* As with several other Mario games, you can jump on and attack Toad for HOURS...and he still will just smile cheerfully after.
** In World S1-Castle, you can do the same thing to Luigi.
** At one point in [[BrutalBonusLevel World S8-Crown]], you're required to jump on a Toad's head.
* The flying letter leading to World 5 shows [[DamselInDistress Peach]] being threatened by a Goomba Tower. The one leading to World 6 shows her whacking said tower with a ParasolOfPain (complete with 1-up sound). [[TheHero Mario]] makes an approving noise and moves on, humming the [[LeaningOnTheFourthWall theme song]].
** The World 6 letter also doubles as a SugarWiki/MomentOfAwesome for Peach, considering she hasn't fought at all in a main series Mario title before (Except for VideoGame/SuperMarioBros2 USA, but that doesn't count because it was AllJustADream).
* When you finally defeat Bowser [[SequentialBoss for good]], the scene cuts to a bird's-eye-view of him in a dramatic SlowMotionFall towards the lava below... [[MoodWhiplash Then he gets hit in the head by a slab of rock. TWICE.]]
** The boss battle also begins rather hilariously as a ShoutOut to VideoGame/SuperMarioSunshine. Bowser makes a dramatic entrance, slamming his fist down upon the floor where Mario was standing mere seconds prior. The standard boss music starts playing as Bowser and Mario stare each other down... [[RecordNeedleScratch then the music abruptly ends]] as the floor makes an OminousCrack. Bowser and Mario share an OhCrap moment together just before the floor gives way completely, dropping them both down into the boss area below.
** During the boss fight itself, there's one point where Bowser abandons his usual fire-breathing tactics in favor of [[VideoGame/DonkeyKong throwing barrels at Mario]].
* When you beat the first castle in World 8, it looks like you've rescued Peach... and then it turns out to be a cardboard cutout that flops over pathetically. The real humour comes in if you're watching without 3D on, as the resulting DepthDeception makes you think it really is Peach for a second.
** It's even funnier if you spotted it using the binoculars earlier in the level. Even if you're playing with the 3D on, it really does fool you into thinking it's the real Peach.
*** Then Bowser flies away representing a certain internet meme cat...
* FunnyBackgroundEvent: As Mario and the Toads are flying home with Peach, Bowser tries to reach them with a Goomba Tower. They can't quite hold him...
* The Propeller box and coin box powerups are pretty funny. You are just a box with legs running around!
* Luigi's version of the final photo. If you shake the 3DS enough times, [[ButtMonkey you'll hear Luigi fall off the branch of the Tanooki tree]].

!!HilariousInHindsight:
* "[[WesternAnimation/TheAdventuresOfSuperMarioBros3 Permit me to introduce ya to...]] '''''[[MemeticMutation RACCOOOOOOOOOOOOOON KOOPA!!!!]]'''''"
* [[http://brawlinthefamily.keenspot.com/comic/367-tanookimadness/ This]] Webcomic/BrawlInTheFamily comic was made a little while before the game came out. One of the outfits designed, Tanooki Toad, is actually in the game -- in the ending credits and the Special World, although it does not look exactly the same. Peach's Tanooki outfit is very similar to the one she wears in VideoGame/SuperMario3DWorld. Also, one of the other Tanooki forms appears in the final letter...
* Before it became canon, there was already fanart of Peach [[http://mr-dna.deviantart.com/art/SMB3-Peach-Suits-29859545 in a Tanooki dress]].
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