Cheat Codes for Half Life

Game Platform

Platform: Action Replay MAX

8 Codes Found 
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  1. (M)
    XG15-HNKJ-Q12ZU
    WXVP-R880-X4NN8
    HF3K-TUGW-Z8W1P
    PTYB-CMDH-F0BPH
  2. Cheat Mode Codes
    61CA-JKUE-N6WED
  3. Unlock Xen Grav
    AZY9-ARPG-FY5ZR
    YXGU-5ZNB-8FCC6
  4. Unlock Invincibility
    2VHB-RB1T-HA4NB
    H7YN-0KJW-F0XG1
  5. Unlock Infinite Ammo
    H8FX-3NUE-AUF8Y
    R44U-7RWT-HF5XH
  6. Unlock Invisibility
    NR59-G9K0-KJJ53
    7Z3G-QMFQ-PBH34
  7. Unlock Slow Motion
    KZAT-E0BV-JDX1N
    3Y8B-GM4D-8HF0C
  8. Unlock Alien Mode
    FE6M-WEG4-3H2JC
    XPNH-N5TW-DBUDT