I liked it. It was fun to play and was challenging well at least the first time you play it. I like the graphics when you destroy the ships. The flames and the explosions were well done. I didn't really have a problem with the overheating, it just makes the game more difficult.
Some improvements I would suggest would be the sound. The background music is funny considering the title of this game but it got a little annoying. Also, the sound of exloding ships would start to sound bad if you destroy too many at once. Lastly, make the respawn time quicker. I always lost a lot of point because I didn't respawn quickly and 10 enemies got by me.