The cheat options are unlocked for every 10,000 points scored in the game. Successfully 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 (infinite scan vision)
Instant Death
Invincibility
Deathstare (automatically kill anything targeted)