Enter cheat in credits at main menu.
Select the credits option at the main menu, then press B, BLACK, Y while watching. This will enable level selection and the remaining cheat codes. Begin a game, then save your profile. Then, use one of the following cheat codes on that profile.
Cheat Mode:
The cheat options are unlocked for every 10,000 scored in the game. Complete the game to unlock all of the following cheat options:
Concept Art 1
SGT. Candy Movie
Concept Art 2
Concept Art 3
Slo-motion
All upgrades
Permavision (Unlimited Scan Vision)
Instant Death
Deathstare (Automatically kills anything targeted)