Runaway astronauts and comet storms are coming down on the orbit lanes. Survive 10 waves, beat the Black Hole at wave 5 and Zorgath the Alien at wave 10.
Move
Arrows / WASD, mouse, or dragDrag anywhere on the screen
Fire
Space, hold click, or keep a finger downFires while your finger is down
Nova
B, or the Nova button
Hangar
U, or the Hangar button: spend stardust on upgrades
Pause
P or Esc · M mutes soundThe II button, top right
Collect the yellow stardust and spend it on shields, thrusters, coolant, fire rate and more. Orange capsules give the Ion blaster, cyan give the Plasma lance.