ORBITAL DEFENSE DIRECTIVE
Move beneath the formation, fire through openings, and use your shields. Hold Fire for sustained shots.
Desktop
Arrow keys or A/D · Hold Space to fire · X pulses · R restarts · M mutes
Mobile
Slide the joystick · Hold Fire · Tap Pulse to clear nearby enemy shots
Shoot supply saucers for upgrades. Destroy hostile dropships before they beam raiders into positions above your bunkers. Rapid Fire and Piercing Shot last briefly; Repair restores a damaged bunker. Every 12 kills recharges Pulse.
DEFENSE LINE LOST