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Half-Life

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GF Rating
7.4

612 ratings

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Cheats, Codes & FAQs

Codes brought to you by GameFAQs

Cheat menu cheats

  • Up, Triangle, Up, Triangle, Up, Triangle, Up and Triangle
    Alien Mode
  • Up, Triangle, Down, X, Up, Triangle, Down, X
    Xen gravity
  • Right, Square, Up, Triangle, Right, Square, Up, Triangle
    Slow motion
  • Left, Square, Right, Circle, Left, Square, Right, Circle
    Invisibility
  • Left, Square, Up, Triangle, Right, Circle, Down, X
    Invincibility
  • Down, X, Left, O, Down, X, Left, O
    Infinite Ammo