This is a cool concept, hampered a good bit by the lack of information - it took me a while to figure out what was going on (although I got there eventually), although it started to click eventually.
I think the game could do with being shortened a bit, once I realised what was going on (and that I could click on screen was well as joystick to move), I found myself repeating rounds without much happening while thinking “I wish picking four weapons meant all four were active at once”. (I don’t think four weapons would actually be good, but by that point I was going through the motions a bit because each round was a bit samey)
Overall a neat concept!