Earth's been invaded! Use jetpacks and guns to battle machines, monsters and alien bosses. Screen is divided into three zones (retreat, advance, and jump/jetpack).

Features:
- ragdoll physics & particle effects
- speed run leaderboards
- supports MFI controllers
- supports landscape and portrait mode
- three hidden giant coins in each world
- two unlockable heroes, and support for importing custom skins
- minigames
- "Fair View" camera skew algorithm ensures consistent lookahead on wider/narrower devices