Nice little game! I quite like the graphic and music.
If you are interested in feedback: The gameplay loop gets a bit stale after a few enemies. So maybe adding a few new abilities that can be picked up to encourage exploring the whole area and also a few different opponents would be nice additions if you plan to keep working on this. There are also a lot of great videos on game feel on youtube to make the overall feeling of the game a bit better. Still nice basis. :)