Choose auto-fire, or hold FIRE / Space.Clear the mushrooms. Survive the swarm.
Mouse or drag to move · Arrow keys / WASD · P / Esc to pause
Spiders drop power-ups · Fleas: wave 2 · Scorpions & poison dives: wave 4
Move: drag on the board or the space below it. Mouse and arrow keys / WASD also work. Stay in the lower patch.
Fire: use auto-fire, or turn it off and hold FIRE / Space. P or Esc pauses. You can clear mushrooms between waves.
The garden: mushrooms take four hits. Shooting a centipede part leaves a mushroom and splits the creature. Poison mushrooms have an × and send heads diving.
Fleas: from wave 2, fewer than five mushrooms in your lower five rows calls a flea. It plants mushrooms, takes two hits, and speeds up after the first. Keep five mushrooms below to discourage it.
Other enemies: spiders clear mushrooms and drop power-ups. Scorpions appear from wave 4 and poison mushrooms. Clear every enemy to finish a wave.
Power-ups: L is a piercing Laser; 3 is Triple Shot. Their leftover beams and side bolts won't delay your next center shot. D plants DDT canisters: shoot them for a blast that scores triple for enemies caught inside.
Lives: earn one every 12,000 points. Losing a life restarts the current wave. Mushrooms stay, damaged ones repair for five points each, and poison stays poisoned.