PC: Arrows / WASD to move  ·  Space or Mouse-click to fire  ·  Mouse also steers.
MOBILE: Touch and drag anywhere in the play field to move — your blaster fires automatically while you hold.
Shoot the centipede to split it into pieces. Destroyed segments leave mushrooms behind. Blast mushrooms to clear the field, and watch out for the spider — it's worth big points but it bites.