# Invincibility

While playing the game, press Select, then hold L1 + L2 + R1 + R2 + Square and press Left. If you entered the code correctly, you will hear a sound and a message will appear. Repeat the code to disable its effect.
# Invisibility

While playing the game, press Select, then hold L1 + L2 + Square and press Left. If you entered the code correctly, you will hear a sound and a message will appear. Repeat the code to disable its effect. -From: Lespaul116@aol.com
# Full ammunition

While playing the game, press Select, then hold R1 + Square and press Left. If you entered the code correctly, you will hear a sound and a message will appear. Note: This code will reset your current weapons to only those available during level 1. Repeat the code to disable its effect.
# Heavy weapons with full ammunition

While playing the game, press Select, then hold L2 + R2 + Square and press Left. If you entered the code correctly, you will hear a sound and a message will appear. Repeat the code to disable its effect.
# Meele weapons

While playing the game, press Select, then hold L1 + R1 + Square and press Left. If you entered the code correctly, you will hear a sound and a message will appear. Repeat the code to disable its effect.
# No clipping mode

While playing the game, press Select, then hold L1 + L2 + R1 + Square and press Left. If you entered the code correctly, you will hear a sound and a message will appear. You may now walk through walls. Repeat the code to disable its effect.
# No gravity

While playing the game, press Select, then hold L1 + L2 + R2 + Left + Square and press Start. If you entered the code correctly, you will hear a sound and a message will appear. Repeat the code to disable its effect.