Keep pressing space to get to 100 Mega Buster power to destroy the Evil ProtoMan! Or be Dark Protoman and hit the right arrow button to destroy MegaMan with a 100 power Dark Proto Buster. Hit the Flag to reset the fight. (Don't get them both to 100 at the same time because it'll glitch out! Or don't get the power over 100 or it'll still glitch!)