Cheats, Codes, and Secrets
The following cheats, codes, and secrets are available for Half-Life on the Sony PlayStation 2 video game console.
Alien Mode
up, triangle, up, triangle, up, triangle, up, triangle
Infinite Ammo
down, X, left, circle, down, X, left, circle
Invincibility
left, square, up, triangle, right, circle, down, X
Invisibility
left, square, right, circle, left, square, right, circle
Slow Motion
right, square, up, triangle, right, square, up, triangle
Xen Gravity
up, triangle, down, X, up, triangle, down, X
More Hints and Tips
- Half-Life hints and tips.
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Some of the above codes were submitted anonymously.
More Cheats and Hints
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