Scroll down. Bossfight modifiers (In every difficulty): MCLP-X Light Strong gravity Slowness II every 10% of the boss's HP lost Boss heals every 5 seconds Hard and Extreme Difficulty Modifiers: Boss deals 30% more damage Wall spikes in the arena (Doesn't damage boss) Extreme Difficulty Modifiers: Kitty, Jewel Star and Susie's HP and Max HP reduced to 75% Smoke bombs every 20% of the boss's HP lost
Credits to @Crunchycheezcake Answer it before choosing a boss.
