The following are known Action Replay Codes for Killing Zone on Sony Playstation (PS1).

The codes should work with the region specified but may work for other regions as well.

Device Compatibility: Action Replay, CodeBreaker & GameShark

Enable Code – Must Be On
80083f2c00c8

Infinite Health P1
8008f9ec0100

Infinite Health P2
8008f9f00100

Infinite Time
8008F7D4 0063

P1 No Energy
8008F9EC 0000

P2 No Energy
8008F9F0 0000