Space Invaders

Waves of invaders march across the screen, dropping lower every time they touch an edge — and marching faster as their ranks thin. Shoot them all before they reach the ground: squids up top pay 30 points, crabs 20, and octopi 10. Duck behind the four bunkers to dodge their bombs, but watch them crumble — your own shots chew them too, and so do descending invaders.

Now and then a 🛸 mystery ship crosses the top — hit it for a surprise bounty of 50–300 points. Reach 1,500 points and you earn an extra life. Clearing a wave brings the next one on lower and faster; the invasion never truly ends.

Move with ←/→ or A/D, or drag on the field. Space (or a tap) fires; while paused it resumes. P pauses. On touch screens an on-screen pad appears below the field.