Metal Arms: Glitch in
the System Game Cheats ( PlayStation 2 )
Unlock Concept Movie: Beat story mode to unlock this feature.
Unlock General Corrosive for Multiplayer: To unlock General Corrosive for multiplayer, collect all of the speed chips in the game.
Fighting the Zombiebot King: In order to beat the Zombiebot King just wear him down using rockets until he pauses (doesn't move). Toss a grenade (coring charge) into its mouth. On Normal, it takes five grenades to kill him and after the 3rd and 4th grenades there are regular zombiebots that swarm the arena.
