Ha, I got 241!!
Anyway, nice game, all these particles made the game beautiful. Playing it, was pretty fun. Controls are simple, but at times it was not easy to shoot flying enemies, so that made the game interesting.
I liked that there was a minimap, it let me shoot enemies while they are not even visible.
The only thing I would suggest is to make those flying things look more like enemies because I thought that it was some kind of a power-up and I tried to pick them up :D
Also, the big mystery - what is that big red plus in the middle of the map?
P.S. If you want to challenge yourself, try to finish my game, without taking any damage the least I got was 20 :D