Metal Arms: Glitch in the System Cheats :
Cheats - Fight Zombiebot King
by Unregistered Apr 25, 2005
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.
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