Magmo

Magmo, the Lava Man is a lava man from underground.

History
At a research center, the scientists were drilling into the ground. Zenith High School were on a school trip there at the time. The drill exploded and Magmo, the Lava Man, burst out of the ground. Rod Runtledge quickly turned into Fallout Boy and fought against Magmo, before getting trapped under a bit of machinery. Magmo then headed into the city.

After Fallout Boy got out, he and teamed up to fight Magmo. They chased him down and after a brief fight, they wrapped him up in asbestos insulation from a local construction site and knocked him out. They then dumped him back down the hole he came from and sealed it off.