Half-Life cheats and codes

Half-Life

Low Gravity

At the cheat screen enter: Up, Triangle, Down, X, Up, Triangle, Down, X.

Invisibility

At the cheat screen enter: Left, Square, Right, Circle, Left, Square, Right, Circle.

Slow Motion

At the cheat screen enter: Right, Square, Up, Triangle, Right, Square, Up, Triangle.

Invincibility

At the cheat screen enter: Left, Square, Up, Triangle, Right, Circle, Down, X.

Alien Mode

At the cheat screen enter: Up, Triangle, Up, Triangle, Up, Triangle, Up, Triangle.

Infinite Ammo

At the cheat screen enter: Down, X, Left, Circle, Down, X, Left, Circle.

Pro Action Replay Cheats

(M)
0E3C7DF2 1645EBB3
0C1AB027 F8A9CB9F

Unlock Xen Grav Cheat
2C291BED F8FC3F7E

Unlock Invincibility Cheat
2C291B05 F8FC3F7E

Unlock Inf Ammo Cheat
2C291B1D F8FC3F7E

Unlock Invisibility Cheat
2C291B35 F8FC3F7E

Unlock Slow Motion Cheat
2C291B4D F8FC3F7E

Unlock Alien Mode Cheat
2C291B65 F8FC3F7E



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