The art on this game very cute and polished. The screenshake when you shoot is some really appreciated player feedback that not a lot of games in the jam do enough. It would be cool to see more of this game, the mechanics are all good, and it would be cool to explore the western environment (perhaps like a rougelike?). Good job!
Oh also on the web version, I had the same problem when I tried uploading my game (it loads until like 90% and then just doesn't play), but I managed to fix it. Before you build, go on Player Settings and then Publishing Settings. Change the compression format to Gzip and enable decompression fallback. Then just build and upload it to itch, and it should work.