All spoilers are UNMARKED per wiki policy. Read at your own risk! You Have Been Warned.
- After Bowser is defeated:Bowser: "My Powers... gone... My Empire... shrinking... My huge cake... never got a slice..."
- Even better is what happened to Bowser afterwards in the credits reel. All that bluster about his then immense size and power (and his jabs towards Mario for his apparent lack of it) throughout the game served as the perfect recipe for some epic karma, as Bowser is now smaller than the Toad wandering nearby and is completely harmless. Bowser's now squeaky roars and futile pouting further sells his currently helpless state.
- In the ending, after saying goodbye to Mario, Luma goes back to Rosalina...while taking Mario's hat away from him. Mario gets confused and Peach laughs.
- In some Yoshi missions, it's possible to bring a Smeech enemy all the way to the end. When collecting the Power Star, the Smeech will still be stuck to Yoshi's lips, utterly ruining the moment.
◊ - While collecting a Grand Star as Yoshi, the animation shows him struggling to catch up to Mario in order to pose with him.
- This only happens once in the entire game, after defeating Megahammer, so the fact that there's even a cutscene for this is surprising.
- Mario's reaction to using his first Launch Star of the game has him flailing his arms and legs.
- There is a Gearmo in Chompworks Galaxy who apparently gets kicks out of being hit by Chomps, with one of the Gearmos lampshading the oddity by openly wondering what the heck his companion is doing. He is still there in the second mission and now the other Gearmo is doing the same thing on a higher area with smaller Chomps.Gearmo: BRING IT ON! Gimme your worst!
Second Gearmo: I GET IT NOW! - If you die after encountering the Whomp King for the first time in Throwback Galaxy, he'll start to go on his tirade about how the Thwomps have been mistreated once again...only to give up midway through, declaring that he's "tired of giving [his] speech."
- Speaking of Whomp King, he also makes this◊ goofy face upon being defeated (which can never be seen since he is always face-down when it happens).
- Speaking of Whomp King, he also makes this
- Much like if you get zero purple coins on the purple coin missions of the Battlerock and Dreadnought Galaxies in the first game, if you somehow manage to get zero purple coins on the purple coin mission on Tall Trunk Galaxy, the Gearmo at the end will take notice:Gearmo: ?! You didn't get a single one?! Did you do that on purpose? Well... I suppose that is impressive in its own way, but I have to say, I'm still pretty disappointed...
