The game is cool, but there is no way to defend yourself or escape being abused, one option would be to add weapons that you find on the map, add a zoom on the camera because it is very annoying to see the view from afar, Changing the 2/3D style to just 2D like anime, improving the environment is quite empty.
Since your game is similar to Syahata’s Bad Day I recommend you take a look at this game for a reference.
I'll be back in about 3/4 months to see how the game is going.