Mega Man X Legacy Collection
53 Achievements
20-25h
PS4
Promise Me, Zero
Complete X's story in Mega Man X4.
19.4%
How to unlock the Promise Me, Zero achievement in Mega Man X Legacy Collection - Definitive Guide
shrapx
You must beat the game with X. It’s suggested to do this on Normal, WITHOUT the Ultimate Armor, to unlock True Hero 
and Tragic Destiny 
at the same time.