I thought this was a really cool idea and really reminded me of games from the early 90s. I enjoyed that movement was abstracted to a 2D grid and it was intuitive that navigating to the boxes meant something was going to happen there. The feedback I do have - I didn't see the point of the punching as enemies never got in range to where I thought it would be effective (maybe I didn't get far enough to see what it was intended for), I didn't like how the in game aim cursor dragged behind the actual mouse as it made aiming a bit annoying - I would consider just not do that - or hide the desktop's mouse, also it seemed like when I got hit, the screen would shift down or up - which was a bit off putting.
good work!