Nice game! I think you put an interesting spin on a familiar genre. The mechanics are difficult to understand from "how to play" text alone, but I managed to figure everything out after I played one run. So, 'how to play' hints are good, the player just needs some context.
Maybe it's just me, but I would prefer if there were less button mashing. As of right now, you need to mash to defeat enemies and to recharge energy. It feels repetitive, especially during combat. I don't think you can do anything other than mashing during combat.
Overall, it's a fun game, I found it very entertaining and it feels quite polished. Great job!