Underman is a character who debuted in the indie-game Undertale by Toby Fox. He is the older brother of Papyrus. If you chose the Genocide route, he will have a battle with you. He appeared in Flamingo's video You'm think sans from undertale isnt a woman then how the man heck ?? where Albert plays Undertale again and meets Underman for the first time. They have a conversation and eventually meet up with Papyrus. However, Albert stops playing Undertale to play "Final Boss in UnderTale" on Roblox which is a recreation of the Sans fight in Undertale and keeps dying.
- Albert calls Sans "Underman" because he keeps forgetting his name.
- Underman appears in The Chill Elevator as one of the bosses.