This was a good submission! I feel though that the camera should've been more zoomed out and the movement speeds much lower, I'd often run straight into enemies that I couldn't see. It would also be nice to have more direct control over your summons (maybe they move towards where the mouse is pointing), as sometimes I would try to get them to defend me and they would not be very helpful.
With some sound effects and more fleshed out controls, I think this could be a fun little high score game!