Enter the code screen. Enter ENTREZVOUS as a code, the screen should flash green as always. Get out and go back in the code screen. Enter PORTECLEFS and now you have unlocked everything.
All of the codes must be entered in the Options, where the typewriter is. They will only work on completed levels.
Invincibility - PUISSANCE
Cartoon gallery - MOHDESSINS
Quadruple firing rate - BALLESVITE
Podoski mode - LATIREUSE (Enemy kills you with one shot)
Wacky taxi mode - AUTODINGUO
Team gallery - MOHUEQUIPE
DreamWorks Interactive personal screens - DWIECRANS
Bouncing bullets - RICOCHET