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Skull Walkers were giant machines that were a lot like the Enforcers. The only differences were that the "head" or the cockpit was cut in half and shaped like a skull, they were a lot shorter, and they were part of the undead crew. They shot their machine gun bullets a little at a time, but were hard to avoid. They also crushed Ratchet like an Enforcer if he went under its legs. They seemed harder to kill then Enforcers. The best way to kill one was to throw Ratchet's Fusion Bombs then use the Combuster.
- Ratchet & Clank Future: Quest for Booty (first appearance)