Defend bases by placing towers to attack waves of enemies. Upgrade towers and use super-bonuses for enhanced attacks. Track progress through 36 levels and over 750 waves. Support multiple enemy types including moving and flying units.
Play as a space turret operator defending friendly objects from enemy attacks. Use 12 primary weapons with unlimited ammo but scoring penalties and 6 secondary weapons with limited ammunition. Defend positions and eliminate all incoming threats.
The app challenges players to defend their planet from an invasion. Players control the stream of bullets by tilting the device, aiming to stop attackers.
