Wild Guns/WMG
The bosses of the four selectable levels are somewhat based off the four classic Greek elements (Earth, Fire, Wind, Water)
- Desolation Canyon- Fire (tank attacks with a flamethrower and incendiary missiles)
- Gold Mine- Water (it's a Giant Enemy Crab)
- Armoured Train- Air (the jetpack dude flies)
- Ammunition Depot- Earth (it's based off a snake or worm, something which lives in the ground/under a rock)