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Half-Life (PS2) Cheats & Tips

Your guide for cheat codes, tips, hacks and walkthroughs

Game Shark Codes

Must Be On	EC8783A8 1431D934
Unlock Alien Mode Cheat	4CA573BA 1456F025
Unlock Infinite Ammo Cheat	4CA57372 1456F025
Unlock Invincibility Cheat	4CA5735A 1456F025
Unlock Invisibility Cheat	4CA5738A 1456F025
Unlock Slow-Motion Cheat	4CA573A2 1456F025
Unlock Xen Gravity Cheat	4CA57342 1456F025