Originally Posted by StalkingGrunt911
Okay quick question. The timed achievement isn't unlocking for me. I go past the cutscene and get the game to save, quit out, select chapter 9, use cheats since it don't matter, and don't use them on the boss. Didn't unlock and I've done it twice now.
Do I have to go farther in the level then quit?
That's where you're wrong. It does matter. You cannot use cheats at all
in an act, or it will disable the achievements entirely. You have to complete Act 9, in its entirety (kill the Immortal and everything) before it will unlock.