Here’s my entry, Space Rocks Revenge:
You may have seen an earlier version of the enemy spaceship in this old post, but I had never gotten it to a playable state at that time. Thanks to many hours spent on airplanes with nothing else to do, I finally restarted development and rewrote the flight control and AI code.
Your shield recharges between waves, but your hull doesn’t get repaired, so be careful. Early on you’ll face weaker ships, but the wave 6 opponent flies a ship identical to yours. From wave 7 on, you’ll get progressively more (but not quite as tough) enemies. Good hunting, and have fun!