You have definitely got a good start on your aesthetic here, and we like that you are testing the game as you develop it! The player's movement is a bit unnerving, but it gives him a bit of a dystopian zombie feel, so you might want to capitalize on that moving forward?
I did not see any enemy, and I am not sure how to test the weapon or combat mechanics as mentioned. Also it would be good if your instructions included a way to exit the game.
Thanks for bringing this game to our attention. We wish you the best and hope to follow your next steps!