Cosmic Defender
Pilot a lone fighter against waves of descending ships, dodge enemy fire and grab repair kits to keep your hull intact.
Enemy ships drop from the top of the screen in waves, and your fighter sits at the bottom with a rapid-fire cannon. Three kinds of attackers appear: drifters that fall straight down, weavers that swing from side to side, and heavily armoured tanks that take three hits and fire aimed bolts back at you.
Your hull starts at 100. Ramming a ship costs 25, a tank bolt costs 12, and any ship that slips past the bottom edge chips away another 10. Occasionally a destroyed ship leaves a green repair kit that restores 20 hull points. From the third wave on, the cannon fires a three-shot spread.
The waves never end, so the goal is simply to rack up a high score before the hull gives out.
How to play
Steer your ship left and right and keep the cannon firing. Shoot drifters and weavers once, tanks three times. Pick up green repair kits by flying into them. Each wave announces itself at the top of the screen, and a new one starts when the field is clear.