Excellent game
It was quite fun, but I kind of disliked the fact that I have to restart the whole game whenever I lose. Perhaps make an option to restart at the same level but then you can't submit the highscore. Also, if you ever decide to make a sequel, make it so you can sort of buy new ships and upgrades and stuff from the points you earn (if you do, make it so you can repeat the same mission). The sound is 0 because I play with sound muted.