All Levels, Unlimited Ammo, Invincibility:
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Hold L2 + R2, press Left, Down, Right, Up „on the title screen”

cheat menu
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CLAW Egypt fodder – 2p
GODDESS Female Trooper – 2p
GODLY God mode
UGLY Hive Fodder – 2p
LEGGY Hive Guard – 2p
SORTED Infinite ammo
SKIPPY Level select
COLDENPIE Unlock all cheats
LOADED Unlock all weapons
RUBBER Volcano Guard – 2p