Nice game - really good job!
Navigation and button to controll gameplay are not quite intuitive as in other games so that would be something to look into. I was constantly mistaken which button is jump and which attack.
I would love to see the tutorial in game - I was rushing into it and needed to go back to itchio page to see what I need to do.
Sorry but this music is not my favourite - maybe I don't rally like 8-bit type of music ^^
Overall really nice submission - keep working on great games ;)