2/5, in my opinion.
-Music is great
-A bunch of great and fun platforming mechanics
-Combat doesn't feel that great, and enemy position makes it really hard sometimes to fight without taking a lot of damage
-Boss fight could have more impact, didn't drag too much but ended really abruptly
Generally, it's not a bad game, but still has a long way to go to be good. Lots of fun ideas that could use more exploration in a longer game, but on the other hand, the combat wouldn't be able to support a game longer than it is right now.