Underfell Sans Fight
Underfell Sans Fight is an undertale AU with bad monsters, in the pacifist route, you must spare monsters and make them good people, in the genocide route, you must KILL everyone.
In this fight, you are a genocider, you must kill.
Tips for fighting:
- In phase 1, try your best not healing, try your best dodging the attacks.
- Never let your guard down.
- Keep fighting.
- Don't use mercy, EVER, it won't work even in Sans's break, because nothing will happen, so it's a waste of god damn time.
- Have fun!
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