Outside of an initial crash in the tutorial the game seems very solid. I would've definitely appreciated an autofire option, as I was firing so much at so many different targets that all the clicking started to get uncomfortable. A lock-on feature could also help with some of that. The movement options available are pretty nice, but with the high volume of attackers and air-based spawn point it seems like the best strat is just to play a hovering turret as I didn't find the blade to be very effective.
The issues I encountered are largely down to tuning the game, so all should be easy to fix. A solid foundation is worth alot, good job!