How to play Comet Shield

• Goal: protect the sky! Blast drift mines, darts and rocks, then beat the Mothercomet every 5th wave.
• Touch or mouse: drag left and right. Your ship fires by itself. Double-tap or tap NOVA for a big blast.
• Keys: arrow keys or A and D to move, Space for Nova, P to pause.
• Tip: grab the purple shards. A full Nova clears every enemy shot on the screen.