History Funny / Undertale

** After surviving the opening attack, Sans will will eventually interrupt his own intro speech to sucker-punch you.

** The boss will eventually interrupt his own intro speech to sucker-punch you.
---> "It's a beautiful day outside. Birds are singing" ''(beats the crap out of you)'' "Anyway, as I was saying, it's a nice day out. Why not relax and take a load off?"

** The boss's special attack, which they precede with "Here goes nothing." "yep. that's right. it's [[ExactWords literally nothing]]."

** Occasionally, when eating a "[=SpiderDont=]", the flavor text will reassure you: "Don't worry, Spider didn't."

** And finally, after all that, after the rollercoaster of hilarious hijinks, heartwarming sweetness, and borderline shitposting, you yourself get a moment alone with Undyne... and "[[{{Leitmotif}} NGAHHH!!]]" plays at [[https://www.youtube.com/watch?v=J6CfYuEwCeI a truly ridiculous speed]] as she starts ''freaking the fuck out''.

* How the fight with Mettaton EX even ''starts'' is golden. He's normally invincible while in his standard box form, so how do you get him to turn around so you can hit his switch? Frisk tells him that there's a mirror behind him, and [[DistractedByMyOwnSexy Mettaton ''immediately'' falls for it.]]

* Papyrus and Sans host [[https://www.youtube.com/watch?v=3Xh1KnP_LBU the video explaining the Kickstarter tiers]].

* Flowey's increasing rage (and his theme music lowering one semi-octave at a time) when you don't fall for his trap is hilarious, especially if you're doing it in revenge for him chiding you on a previous game. After the second time, he accidentally says "bullets", then [[NoFourthWall looks over at his speech bubble]] and [[VerbalBackspace changes it to "friendliness pellets"]]. Eventually, he completely loses it, reveals his NightmareFace, and launches his unavoidable attack as normal.

--->'''Undyne''': Papyrus, why do you live in [[GrimUpNorth an icy wasteland]]?\\

'''Papyrus''': OH, THAT'S SIMPLE. IT'S A MYSTERY.

* The [[https://twitter.com/Fangamer/status/1050857266264457216 Fangamer commercial for Sans' hoodies]]. Frisk enters Sans and Papyrus' house, only to discover one of Sans' hoodies jammed between the cushions of their sofa. After pulling it out, the hoodie smashes against the TV and breaks it, and the sofa begins shaking until an endless stream of hoodies erupt from it with enough force to [[TheFourthWallWontSaveYou break the text box]], causing Frisk to run away in apparent terror. Cue Papyrus coming out of his room and witnessing the horror.

-->'''[[WebVideo/{{Vinesauce}} Joel]]:''' ''Hang on guys, I'm gonna go [[VideoGame/{{Earthbound}} grab some coffee]].''

--->*Get an item* '''[[FalseReassurance Don't Worry, I have Lots of Ideas for Trophies]]'''\\

-->Undertale on Nintendo Switch\\

** The FakeOutOpening involving ''Mew Mew Kissy Cutie'', of all things.

--->[[LampshadeHanging Toby where is this footage even coming from??]]

--->(Sans' innumerable hoodies and the joy they bring fills you with determination.)

''that's the expression of someone who's died six times in a row. that's the number of fingers on a [[BrickJoke mutant hand]]. you'll need to find a mutant hand with even more fingers.''\\

'''Papyrus:''' SHE HATES PUZZLES. BUT SHE LOVES JAPES.

--->'''Papyrus:''' Stand around and look cute.