the god damn Mass Effect lvl 60 achievement...

I'd have to look at them to be sure and I only have most of my achievements from four different games (Madden 09, RE5, SF4, Scene It: BOS) with the rest just being a few here and there from some other games. Hey...I've only had the system five months...

So off the top of my head, the hardest was something more just random from RE5. I think it was called "Headache" or "Aspirin". You had to shoot a Majini in the head while jumping. After a few playthroughs, I just happened to shoot one at the right moment.

i should have seriously but the game didnt track half of my kills

High Mile Club in CoD4
The flag achievements in Assassins Creed
The Hard with Golden Medal campaign ach in Command and Conquer Tiberium Wars
Legendary in Halo3
Realistic in Rainbow Six Vegas
phew!