This game was written in Flash CS4 and uses AS3 . I have provided a Flash CS3 version also. The object of the game is to survive for as long as you can whilst getting the highest score possible by a combination of avoiding and shooting the asteroids.
You can change the graphics by editing the relevant movieclips in the library.
Instructions and help file is included.
28.11.12 Update in queue with increased game size and minor improvements.