Red Dog: Superior Fire Power cheats and cheat codes for Dreamcast

Unlock Helter Skelter multi-player level
Play at least twenty multi-player games continuously. After unlocked, 
save the game to get access in single player mode always.

Unlock Drive Or Die Expert multi-player level:
Highlight the Drive Or Die Expert stage at the stage selection screen, 
after hold R + L for at least 3 seconds.

Unlock bonus multi-player maps
Reach an "A" rating while playing single player missions

Bonuses items:
Finish the challenge games to receive bonus items.

Secret images:
If you insert your game disc into a PC CD-ROM drive, you will find 
lots of images from the game.