A and D/left and right arrow keys to move, W/up to jump, and space to throw balls. Don't touch red balls or Oppostomp. Touch a cyan ball to pick it up. Throw balls at the Oppostomp to deal damage. Oppostomp likes to try to stomp you. If you beat Oppostomp without taking damage, post it in the comments. ~Description~ Oppostomp loves to crush stuff, but he has a job to do. That makes it tough for him to what he loves. Actually, not really. His job is to crush intruders. So, I guess it is easy to do what he loves.
Thanks to @GoldenCart for Boss Battle - Oppostomp EX - Extra Boss 1. ~Known Bugs~ You instantly lose if you touch a red ball ~ Fixed
