GameBoy: Battle Unit ZeothBattle Unit Zeoth is a 2D futuristic side scrolling shooter. Humanity is in danger a race of alien robots known as the "Grein" invaded the Solar System. They lost and fled, but left behind an underground base with self replicating Grein machines. Two years after the invasion aliens attack again. However, the humans have made a special mech, Zeoth, designed for combat. Player controls Zeoth who can move to the right and shoot enemies. The odd numbered