Uploaded December 2016 | Updated September 2026, 2 weeks ago

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My Patreon: patreon.com/Underlab
A video explaining why I use Patreon and why I'd so massively appreciate it if you'd like to contribute: youtube.com/watch?v=fq7e3s_5jKg

What do Sans and Papyrus get up to during Christmas day? Turns out that it isn't much different from their usual shenanigans. Merry Christmas!

Underlab explores the secrets and obscurities of UNDERTALE, that game everyone seems obsessed with. There's a lot of said secrets and obscurities. Like, a lot. It also showcases and explains the lore and story of the game in an attempt to explain, clarify, and perhaps even discover completely new stuff...

Underlab on Twitter: twitter.com/UnderlabYouTube

UNDERTALE is a game by Toby Fox
Awesome channel art by FrauLion! frau-lion.tumblr.com
Snowball SFX from World of Warcraft
Harry Wakamatsu created the UNDERTALE replica fonts used in this video
UNDERTALE sprites ripped by The Spriters Resource community (thanks UnderFail, JamminJelly and ILLUUM)
UNDERTALE OST extended by Elu Tran
Extremely convenient save states provided by HylianAngel
Special thanks to my best friend(s)

Buy UNDERTALE here: undertale.com (six out of seven dogs recommend it)