Invincibility Press Y, X, B(2), A(2), B, X at the code entry screen.
Level select Press X, Y(2), X, B, A(2), B at the code entry screen.
Missile Command mini-game Press A, B(3), X, Y, A, B at the code entry screen. Alternately, in the vet's office on level 13, walk into the small office on the far right side. Approach the computer and press A to play Missile Command. Then, successfully complete the level to unlock the game at the "Atari Games" menu.
50% less health in combat with TX Press B(2), X(3), B, A, Y at the code entry screen.
Centipede mini-game Press A, B(3), X, Y, B, A at the code entry screen. Alternately, successfully complete the game to unlock Centipede at the "Atari Games" menu. Note: If it is not unlocked as soon as you complete the game, restart your Xbox, reload your game, and recheck the "Atari Games" menu.
All still pictures Press B(3), X, B, Y, B(2) at the code entry screen.
All FMV sequences Press B(3), A, X, Y, X, Y at the code entry screen.
Unlimited continues Press B(3), X, B, A, Y, A at the code entry screen.
50% more health in combat with T-850 Press A, Y, A, Y at the code entry screen. Note: Leave the last four code positions blank.
All future weapons Press A(3), X, B, X, B(2) at the code entry screen.
Unlimited ammunition Press X, A, Y(3), A, X, B at the code entry screen.
TX endoskeleton in every fight Press X, B, X, A(2), Y, X(2) at the code entry screen.
Hint: Defeating the Infiltrator This Boss battle will be your mission in level 5. Press the buttons as instructed by the bottom captions. Do this at random so that the Infiltrator cannot predict your attack. When his health is down by 24, he will get a limp leg which will slow him down
50% less health in combat with T-850 Press B, Y, A(2) at the code entry screen. Note: Leave the last four code positions blank.
50% more health in combat with TX Press B, X(3), B, A, Y, A at the code entry screen.
