CONTROLS
← → or A D — Move
SPACE — Fire (1 shot at a time)
ESC / P — Pause
H — This help
SCORING
Top row (squid) — 30 pts
Mid rows (crab) — 20 pts
Bottom rows (octopus) — 10 pts
Mystery ship — 50-300 pts
Extra life at 1500 pts
HOW TO PLAY
Destroy all 55 invaders before they
reach the bottom. Use shields for cover.
Invaders speed up as you destroy them!
Press H or tap to close