Primal monster: Petromasus

Petromasus is the result of an explosion of a multiple barrels of petrols. Because of the failed experiment that a crazy doctor did with a meteorite, it exploded the entire lab and turned the doctor into ashes. But the explosion also made petrols invaded over the entire laboratory, and the fact that the doctor ash was here, it mixed with the meteorite to give birth to an abominable monster: Petromasus.