unable to play your game as I am on Mac :/  but the concept looks so good!

Yep, this was exactly the kind of game I needed to find, it is such a cool concept, making the beat gave this game so much depth, giving this any less than a 5 on audio is criminal, because the entire game is based around it!

My game is a cross between Super Mario Galaxy, and Cuphead, if you have any interest in that!

Great idea--i like that you get to make a bit of a beat as you upgrade your equipment.  Found myself doing suboptimal builds just because i didnt want to ruin my rhythm.  The scribbly pixel style is refreshing--sets it apart a bit from other games (sidenote: i dig the deceit games intro animation).  I couldn't quite figure out how your health regenerates, but the rest of it was really clear.  Played until i maxed out my kit and could just evaporate the waves, really well done!