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SANESSS is the secret boss of the Genocide Ending in Underpants. To do this, after chasing Flowey and before Sans, type T-O-M then you'll activate SANESSS boss fight.

Attacks

Soul Modes

He doesnt have one bitch


Patterns

Strategy

This battle is an endless fight which is no way to defeat SANESSS in this battle. All you have to do is to dodge all of his attack forever instead. However, if you tried to FIGHT SANESSS too many times, he will shoot you with his BIG Bone Gun and blast you with his Tom Blaster.

Mechanics

Quotes

Pre-Fight
  • heh heh heh.
  • heya.
  • you've been busy, huh?
  • you already know me, kiddo.
  • heh, it's me....
  • SANNESS!!!!!!
  • YOU WANNA HAVE A BAD TOM!?!
Fight
  • fuck you.
  • BOOOOOM!!!!!!!!!!!!!!!!!! [If you attack him 10 times]
Flavor Text
  • Fuck you. [Check]
  • Fuck you. [Encounter]
  • Fuck you. [Neutral]

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