Top 10 Undertale Headcanons


The Top Ten

1 Sans is actually black
2 Mettaton's legs are so hot that you can literally fry an egg on top of them
3 Papyrus is actually the corpse of a deceased Starman from Earthbound
4 Alphys has an embarrassingly extreme foot fetish and is too shy to admit it to Undyne
5 Undyne's spear actually shoots Microsoft pointer arrows
6 Alphys clearly based Mettaton's design off of David Bowie
7 Skeletor is actually Papyrus' long-lost cousin
8 Mettaton's favorite anime is Jojo's Bizarre Adventure
9 Muffet Works Her Daily Night Shift As A Prostitute
10 Frisk is actually Brock's newly adopted son/daughter

The Contenders

11 Alphys got kicked out of school once for being too cute
12 Sans and Papyrus are actually Mario and Luigi
13 Alphys shows a cloying amount of favoritism toward Endogeny, and all of the other Amalgamates are pissed off about it
14 Greater Dog's father that got melted into Endogeny was originally named Greatest Dog
15 There is no actual limit to how far Lesser Dog's neck is able to stretch itself
16 Endogeny has a tongue and loves to lick Alphys' feet with it
17 Alphys secretly collects R34 images of Undyne on the Internet
18 Papyrus took spaghetti-making lessons from Luigi but forgot what the instructions were
19 Sans' favorite instrument is the trom-BONE
20 Sans is actually a very talented comedian but prefers not to show it outside of his comedic career
21 Alphys wants to amalgamate herself together with Undyne
22 Alphys and Undyne are both hermaphrodites
23 Toriel used to give Asgore footjobs almost every day back when they were still married
24 Asriel's powered-up boss form is literally a Mary Sue fanfiction character that he made of himself
25 Flowey is DURR, PLANT
26 Burgerpants is a grease-fire burn victim
27 One of the Temmies is bound to a wheelchair and can only say its own name
28 If Alphys and Undyne had children, they would be homosexual males
29 Pikachu is Sans' favorite drinking buddy
30 The Dreemurrs are actually a subspecies of the Mimiga from Cave Story
31 Alphys has a pet Woshua that serves as her genital cleaner
32 Gaster is an ingame representation of Toby Fox
33 Gaster is Papyrus' and Sans' father
34 Alphys used to give Asgore footjobs on a fairly regular basis back when she was his girlfriend
35 Burgerpants is Mettaton's sex slave
36 Sans is secretly human
37 Sans is Ness
38 Mew Mew Kissy Cutie 2 is one of Undyne's favorite movies
39 When Alphys orders pizza, she always orders the toppings in a catgirl shape
40 Alphys has a secret manga-reading club that she formed with the Amalgamates down in the True Lab
41 The Amalgamates were actually Alphys' attempt to create the next genetically discombobulated meme animal
42 Alphys likes to dress up as an anime catgirl fairy in her spare time
43 Toriel can actually make pies with her feet if you ask her to
44 Papyrus' voice sounds like Skeletor
45 Sans' voice sounds like cr1tikal
46 Papyrus' voice sounds like Waluigi
47 Alphys is Francis' sister from Super Paper Mario
48 Papyrus' voice sounds like Skeletor
49 Papyrus spends hours working out every single day but can never quite get any meat on his bones
50 Memoryhead is the minaturized leftover remains of Giygas from Earthbound
PSearch List

Related Lists

Top 10 Cute but Sadly Unconfirmed Headcanons for Video Games Top 10 Headcanons for TV Shows, Movies and Video Games Top Ten Best Undertale Characters Top Ten Songs from Undertale Top 10 Undertale Bosses

List Stats

77 listings
2 years, 238 days old

Top Remixes

1. Sans is actually black
2. Mettaton's legs are so hot that you can literally fry an egg on top of them
3. Papyrus is actually the corpse of a deceased Starman from Earthbound


Error Reporting

See a factual error in these listings? Report it here.