: Look for a blue electric box on the wall to regain health. During the fight with the T-X, aim high at the ceiling for a circular prompt to trigger a crane hook. If she is standing on a jet, this hook can be used to lift her or provide a strategic advantage.

: For every 10,000 points you score during regular gameplay, you will unlock additional cheats in the menu.

To activate these cheats, go to the , select the Credits Movie , and enter the following button combinations simultaneously while the movie plays: Cheat Effect Xbox Button Combination Invincibility B + Black + R All Upgrades B + Black + L (or Y ) Level Select B + Black + Y Unlockables

: In some interior sections, you can shoot red explosive barrels near walls to create shortcuts for John and Kate. Xbox Cheat Codes

: Your health is tied to your fuel cells. Use the "Reboot" ability to regenerate health, but be aware it leaves you vulnerable for a few seconds.