Half-Life
# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
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
Infinite Ammo
At the cheat screen enter: Down, X, Left, Circle, Down, X, Left, Circle.
Alien Mode
At the cheat screen enter: Up, Triangle, Up, Triangle, Up, Triangle, Up, Triangle.
Invincibility
At the cheat screen enter: Left, Square, Up, Triangle, Right, Circle, Down, X.
Slow Motion
At the cheat screen enter: Right, Square, Up, Triangle, Right, Square, Up, Triangle.
Invisibility
At the cheat screen enter: Left, Square, Right, Circle, Left, Square, Right, Circle.
Low Gravity
At the cheat screen enter: Up, Triangle, Down, X, Up, Triangle, Down, X.