Sans

2015character memeclassic

Published September 26, 2026

Sans is a skeleton NPC from the 2015 indie RPG Undertale who turned into one of the most-memed video game characters of the decade. His pun-loving dialogue, secret boss fight, and theme song 'Megalovania' spawned an enormous amount of fan art, YouTube edits, and TikToks that kept spreading well past the game's release window.

gamingskeleton memesvideo game music memesboss fight memesfan art memes

Overview

Sans is a squat skeleton NPC in Toby Fox's Undertale, styled with a blue hoodie, permanent grin, and dialogue typeset in Comic Sans1. In-game, he plays as the lazy older brother of Papyrus, cracks constant puns, and drops hints that he knows more about the player's actions than he lets on. That double register, joke uncle on one route, brutal secret boss on another, is what most Sans memes work from.

Most Sans content clusters around three things: his pun-heavy dialogue rewritten into short comic panels, fan art of his boss fight on the Genocide route, and audio edits built on his battle theme 'Megalovania'2. The song alone became a self-contained meme, spliced into fake trailers, remixes, and reaction videos, sometimes with no visual reference to Undertale at all4. On Tumblr and Twitter, Sans is also a running fandom joke about how thirsty the internet is for a cartoon skeleton, a bit even Urban Dictionary picked up on5.

The character's font-based name is a small in-joke about design itself. Undertale associates its skeleton characters with typefaces, and the concept was reportedly inspired by the webcomic Helvetica3.

Origin & Background

Platform
Undertale (game) / Tumblr and YouTube (viral spread)
Date
2015

Sans first appeared publicly in 2013, in the Undertale demo and in a bonus video created for the game's Kickstarter reward tiers, before the full game launched2. Undertale itself released on September 15, 2015, at which point Sans became a full character with his own boss fight, dialogue tree, and theme track1.

The skeleton was designed and written by Toby Fox, who developed Undertale largely on his own; Fox is the character's creator, not the creator of the memes about him. Early meme edits were fan-made and surfaced mostly on Tumblr and YouTube in late 2015 and 2016, once players had reached the Genocide route and heard 'Megalovania' for the first time3.

How It Spread

After Undertale's 2015 launch, Sans content spread fastest on Tumblr and YouTube, where fan artists and animators posted comic dubs, AMVs, and 'Megalovania' covers3. The soundtrack was already sold separately at release, which made audio-only Sans edits easy to build, and guitar and metal covers of 'Megalovania' racked up millions of views on YouTube through 2016 and 20174.

Sans returned to the meme conversation when Sakurai announced him as a Mii Fighter costume in Super Smash Bros. Ultimate in September 2019, complete with a 'Megalovania' remix. The reveal trailer pushed the character back into wider gaming discourse well outside the original Undertale fandom1. He later cameoed in Toby Fox's follow-up project Deltarune, which kept the character in circulation through the 2020s1.

On TikTok and YouTube Shorts, 'Megalovania' is still one of the go-to audio choices for edits about difficult opponents, sudden power-ups, or comedic escalation, long after the original game's release2.

How to Use This Meme

Sans memes typically drop his sprite, his voice bleeps, or a snippet of 'Megalovania' into an unrelated situation for a punchline. A common convention is to swap 'Megalovania' into a fight scene from another franchise, or to redraw Sans into other art styles while keeping his blue hoodie and grin. Pun-based text edits often mimic his lowercase Comic Sans dialogue box for the joke to land.

Frequently Asked Questions