Just got 249 on my first try, i am the best
This is really fun! It's a bit easy to cheese, as SooBaccaCole described, and the difficulty curve is a little off. The round before I failed, I got almost all of them, but the round after, I got demolished. Like everything got through. Also, it lags after a certain point.
The visuals are pretty good! The UI is done pretty well and you can tell what everything except for the enemies are. They moved too fast to get a good gauge of how difficult each one is.
I wouldn't have a problem with the audio if I didn't place so many turrets. After that, everything started sounding really annoying because the sound was constant. If it was quieter, or different turrets made different sounds, then I think it would be better.
All in all, though, I enjoyed it! If this gets turned into a full game, I'll play it.