Loved the simplicity and the pixel graphics, it's great considering how much time you've had. There's one small issue that happened to me. Trying to play in Brave Browser, the game didn't run, so I tried Firefox, but it seems that (at least in mine PC), Spacebar is a shortcut to scroll down the page, so everytime I tried to hit the enemies, my browser would just scrolldown a lot and I couldn't see the game. This is weird because when playing other games I often use Spacebar and this doesn't happen.
Anyway, despite of that, I've love the graphic style, the background is gorgeous, this would make a fabulous concept for a mobile game, you should consider working on it some more and trying the Google Play Store and/or AppStore