Defend the planet from waves of invaders. Kill all your enemies, pick up bonuses, upgrade your tank, unlock new types of guns to deal with the 8 end-level bosses throughout the game.
The city has been taken over by a hostile army. Build up your army with heavy military hardware and take back the streets and try not to destroy the city while you are at it.
You are a brave caveman who lives alone in the mountain with active volcano on the island. Deflect stones spewing off from the volcanic eruption with your stick or they will eventually destroy your island.
