This is a good challenge, is starts off with the controls being a bit hard to grasp, but once I got to the Coin Reflexes level the game pretty much hammered into my head how the controls work. I think Coin Reflexes is my favorite level. Some feedback is that I'd make the "Oh Shiney" level where the coin is introduced actually have 4 gaps with the coin at the end of the first two, because currently you can cross the gaps with a jump and a dash and thus aren't required to engage with the mechanic. Similarly I got stuck on the Coin Reflexes level for a little because I didn't know I could jump in the air via the selection menu, a level earlier with a fall where you must jump at the bottom of a pit to get to the platform, prior to getting the dash, a variation on the one at the end of Coin Reflexes for example without the spikes, just to tech the mechanic. This game fits very well with the theme, I'd just clean up the selection of abilities a bit somehow, it's very easy to lose track of how many times to hit, and requires you slowly moving through each option to find the right one. I've found myself tapping it to cycle, and then land on the right one and accidentally let go and thus if I want to activate it I have to cycle through again, or I choose the wrong one, and it slows down what could be a frantic, high-speed game. Still I think you should pursue this game farther, it's a great concept.