"No MFI now." Which is a good thing, oddly. The game is built around its control system. The choreography of the levels is designed for you to jump from platforms, not just whenever you fancy. This naturally feels a bit weird for people used to traditional platform games, but I don't see how MFI would meaningfully improve this game, with the sole exception of it getting a tvOS port. "For $5 do you get anything other than removing ads?" The satisfaction of having supported one of the best indie developers on iOS, who spent months working on this superb platform game?