The Zombie Crisis Cheats (DS)

Unlock Mission Select: Complete the game to unlock the option that will enable you to
choose what missions you want to play.

Unlock ALL weapons and unlimited ammunition for Celia

Complete the game as Celia (the Magnum and Rocket Launcher will not have unlimited
ammunition). 

Unlock ALL Weapons and Unlimited Ammunition for Allen: Complete the game as Allen (the
Magnum and Rocket Launcher will not have unlimited ammunition).