A boss rush where you determine how much of a rush you want. Nice!
Very polished UI and animations right off the bat. Very clever use of the exchange theme. Character animations were great, although the players swing seems a bit wonky.
With dash and double jump being locked behind a "paywall", it felt like cheesing the boss to do an upwards swing, jumping behind them, and getting a few hits in was the optimal tactic to go with.
But with all the assets and systems, I feel this would be a great base for making it a full game.