CHRONICLES OF RIDDICK : DARK ATHENA

BEAT NORMAL EASY GLITCH

Finish the game on HARD,  reload the last checkpoint and switch the difficulty to NORMAL, finish the game, and you will pick up the achievement for finishing the game on NORMAL. A slight drawback to this glitch is that you have to finish it on Hard first, then Normal, for it to work. You cannot do it the other way around! But least it does work for both Dark Athena and Butcher Bay, so it does save some time.