Fighting Force 2

God Mode:
At the "Press Start" screen, hold L1 + L2 + R1 + Triangle + X + Left. Now start a game and choose a level to be invincible and have unlimited ammo. This will also disable the ability to save your game.

Level Select:
At the "Press Start" screen, hold L2 + R2 + Circle + Triangle + Up. Now start a game and choose a level.

GameShark Codes

Infinite Health      d00b32ac2d24 
                     8011724403fc 
    
Max Money            d00b32ac2d24 
                     800cdc40ffff 
    
Infinite Rage Meter  80070f362400
(Upon Fillup)  
    
Infinite Ammo        80073b862400 
    
Have All Keycards    800ce2840101 
                     800ce2860101 
    
Infinite Continues   d00b32ac2d24 
                     800cdc3c0009 

Thanks to Revolution readers Mohammad Hayat, Kurt Heilman, Matt Blanchette, Prince & Joe, and Timothy Joseph Dugay !