God mode:
Pause the game, hold L + R and press A, A, B, A, A, A, A, A.
God mode (limited duration):
Pause the game, hold L + R and press B, B, B, A, A, A, A, A.
All weapons, items, keys:
Pause the game, hold L + R and press A, B, B, A, A, A, A, A.
Get Radiation suit:
Pause the game, hold L + R and press B, B, A, A, A, A, A, A.
Unlock Berserk mode:
Pause the game, hold L + R and press B, A, B, A, A, A, A, A.
Show Computer map:
Pause the game, hold L + R and press B, A, A, A, A, A, A, A.
Advance 5 levels:
Pause the game, hold L + R and press A, B, A, A, , B, B, A, A.
Unlock Tower Of Babel level:
Pause the game, hold L + R and press A, B, A, B, A, B, B, A.
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