Cheats are unlocked by completing all mission objectives (not just the primary objectives) within a certain time. To activate the cheats, go to "System Options" > "Extras" > "Cheat Grid". To play the FMV sequences unlocked in the cheat menu, choose the "Movie Player" option that is above "Cheat Grid".
CHEAT FUNCTION - HOW TO UNLOCK Saliva Spy Hunter Video - Complete level 1 in 3:40. Green HUD (Heads Up Display) - Complete level 2 in 3:35. Saliva Your Disease Video - Complete level 3 in 2:40. Night Vision - Complete level 4 in 3:15. Early Test Animatic Video - Complete level 5 in 3:25. Extra Cameras - Complete level 6 in 3:45. Rainbow HUD (Heads Up Display) - Complete level 7 in 3:10. Inversion Camera - Complete level 8 in 3:05. Concept Art Video - Complete level 9 in 3:45. Fisheye View - Complete level 10 in 3:15. Camera Flip - Complete level 11 in 3:10. Puke Camera - Complete level 12 in 3:30. Making Of Video - Complete level 13 in 2:15. Tiny Spy - Complete level 14 in 5:10. Hover Spy - Complete the entire game. Super Spy - Complete all 65 objectives in the game for unlimited ammunition and invincibility for your car.