I love the concept of the game and I love the visuals!
Though since I have a fairly decent sized screen, and the game was pretty small (due to the camera being zoomed out), it was really hard to see. Maybe try zooming the camera in a bit?
Aside from that, I really love the fact you can destroy everything, and that it's (atleast it seems to be) an endless game. Though the game did become stale after a bit, seeing as it was very repeitive, and after a while I could just hold left click and W, and slightly aim to the right and left and have no challenge what so ever.
Maybe you could add some more variety and more challenging enemies to make it slightly more engaging.
Overall I loved the game, keep up the good work!