Hi! I gave the game a try; here is my feedback:
Pros:
The concept is fun once you figure out how to play, the menu visuals are pleasing, and the weapon upgrade system has good potential.
Areas for improvement:
The attack control (left-click) isn't clear enough at first; it took me a while to understand it.
Some sprites are too small, making it hard to see what's going on during combat.
It's difficult to clearly see which direction I'm aiming; a more visible direction indicator would really help.
Overall, a good prototype with a solid foundation to build on. -Off