Alien 3

rating: --- Ammunition Modifiers [North America]

80D8B8EA Infinite ammo for pulse rifle
80D8CB32 Less ammo in rifle clips
80D8CBA0 More ammo in rifle clips
80DB7DEA Infinite oil for flame thrower
80DB8C30 Faster fuel consumption for flame thrower
80DB8CFF Slower fuel consumption for flame thrower
80DBD2EA Infinite ammo for grenade launcher
80DBE205 Less ammo in grenade clips
80DBE214 More ammo in grenade clips

rating: --- Extra Clips for Weapons [North America]

81E88804 Start with fewer rifle clips
81E88810 Start with more rifle clips
81E88820 Start with even more rifle clips
81E89504 Start with fewer grenade clips
81E89510 Start with more grenade clips
81E89520 Start with even more grenade clips

rating: --- Infinite energy [North America]

7E12425E

This code makes you pretty much invincible.

rating: --- Less Damage and Longer Invulnerability [North America]

81812202 Take less damage

818291FF Longer invulnerability after being hit

rating: --- Less or More Energy from Medkits [North America]

81810303 Less energy from medi-kits

81810D00 Maximum energy from medi-kits

rating: --- Most Attacks do no Damage [North America]

81812200

You can turn this code on and off as desired with no adverse effects.