Hey !
I tried to play your game again and it finally worked ! This is not identified as a malware anymore.
So, about the game : i really liked the gameplay and the atmosphere, you really nailed to make us feel the looming threat of asteroids and it was quite exciting. The sounds and animations are also very cool ! I wish i knew how to do that when i coded with pygame x)
I was just a bit annoyed that the game was not fullscreen, so that i didn't click out of the screen every 10 clicks or so x)
Also, how about making an online leaderboard ? I don't know if you can with pygame but it would be the cherry on top ;)
Good work !