PLEASE NOTE: We take no responsibility for any changes you make to your hardware, software, drivers or O/S as a result of the cheats listed here. Only a few of the cheats listed have been tested and we cannot guarantee any of them will work. If you come across a bad/non-working cheat, please let us know and we will remove it.
Falling without damage
When jumping or falling from a high place, press L2 to flip when close to the ground.
Acquire a force shield on the Bio Lab level
Right after you defeat the boss on the Bio Lab level, go to the door into the second save point area. Save the game and on the second floor help the scientist in the room on the left side. He will give you a Force Shield for your troubles. The shield will protect you from all bullets, but hand-to-hand combat can still cause damage.