:: video games cheat and cheat codes ::                                            

Playstation - Codename: Tenka cheats

Unlock all weapons
Pause the game play, hold L1 and push Triangle, R1, Triangle, Square, R1,
Circle, Square, Square, finally release L1 to unlock all weapons.

Select any stage:
Pause the game play, hold L2 and push Circle, Circle, Square, Triangle, R1,
Square, Triangle, Circle, finally release L2 to select any stage.