The Gila Stomper is a buggy in Jak 3. It is unlocked upon completing the mission "Destroy eggs in nest", in which Jak and Sig destroyed several advanced metal head eggs. Later they returned to find and destroy five large metal-pedes in the mission "Destroy metal-pedes in nest". Right after they used it again to chase down a large band of metal head beasts for an artifact in the mission "Chase down metal head beasts".