Half-Life Cheats
The following codes must be entered at the Cheat Menu
Invincibility
Left, Square, Up, Triangle, Right, Circle, Down, X.
Infinite ammunition
Down, X, Left, Circle, Down, X, Left, Circle.
Invisibility
Left, Square, Right, Circle, Left, Square, Right, Circle.
Slow-motion mode
Right, Square, Up, Triangle, Right, Square, Up, Triangle.
Alien mode
Up, Triangle, Up, Triangle, Up, Triangle, Up, Triangle.
Xen gravity
Up, Triangle, Down, X, Up, Triangle, Down, X.
12/10/01
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