Please offer only constructive criticism. The intent of the GD Showcase is to help the developer create the best game they possibly can. Show them you support their efforts when posting.
Original post by mike74
It ran very slowly on my computer. About 2 fps. Any ideas why it's so slow?
Did you try disabling the starfield? What are the specs of your computer/video-card? I agree that I didn't exactly write it a too efficient manner, but it shouldn't be that bad. :/
It's great. No rooky mistakes, nice colision detection (except for the mother ships) and good conservation of momentum. Ran like a dream on my laptop. Code doesn't always need to be tight, just the main loop parts. I would add some kind of High Scores component and lives system to finish it off.