Invisible Mode
Press Start to pause game play, then hold L and press Up, Left, Right, Up, X. A message will confirm correct code entry. Repeat the code to disable its effect.
Level 2: Easy Completion
When the spotters see you, they will call in an air strike. After you kill the first spotter, hide under the bridge.
Alternate Fade
Press Start to pause game play, then hold L and press Right, Up(2), Down, X. A message will confirm correct code entry. Repeat the code to disable its effect.
Fish Eye Camera
Press Start to pause game play, then hold L and press Left, Up, Right, Down, X. A message will confirm correct code entry. Repeat the code to disable its effect.
Alternate lighting
Press Start to pause game play, then hold L and press Up, Right, Up, Down, X. A message will confirm correct code entry.
Beagle holes, footprints, and burns
Press Start to pause game play, then hold L and press Down, Up, X, Y, X. A message will confirm correct code entry.
All weapons
Press Start to pause game play, then hold L and press Right, X(2), Y, X. A message will confirm correct code entry. Note: Only weapons normally available in the current level will be unlocked.
Slow motion
Press Start to pause game play, then hold L and press Left, Down, Up, Right, X. A message will confirm correct code entry.
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