dude i love this game
to get invincible with out the cheat on the story thing: in the beginning when u r flashing press pause and u will become invincable for the rest of the game!!!!!!!!! but his only works on story:( (i think, i havent tried it on the others) u might be a shadow (very incoveryent cause u cant see ur hand) or u will be u but ppl just shoot through u (i prefur this). one cool thing is the urnels cause u can rip um off the wall and hit ppl in the head XD. also it would be nice to be able to see the mouse cause other wise u move the mouse out and it screws u up.