Blow up enemy ships, buy upgrades, and blow up more ships.
A gray star on a level means you beat the level. A white star means you beat it without taking damage (doing so will give you double the points you earned on that level).
Mouse/Arrow keys/WASD - Move the ship.
Click/Space - Fire weapon.
Z - Toggle autofire.
Shift (hold) - Move at half speed. More precise maneuvering.
Esc - Pause.
v 1.9 - You can now double click a level to start it (I probably shouldâEUTMve had it like that from the beginning). The music starts correctly for people who havenâEUTMt played before.
v 1.8.3 - It'll save your mute state now. If you muted it, it'll load muted.
v 1.8.2 - Re-added quality controls in the right-click menu.