Kill every enemy in Chapter 2 without bursting any acid pods
Watch 5 enemies kill each other in Chapter 3
Finish the boss fight in Chapter 4N without attacking
Kill an enemy with an asteroid in Chapter 5
Confront your rival
Deal at least 300 damage in a single combo
Complete Nightmare's ending
Complete the united ending
Complete every arena battle event
Complete every Challenge Mode on MASOCHIST difficulty as any character