I love the concept and the mechanics were fun. Once I understood how they could be chained together it was immensely satisfying. However I can't help but feel it felt unforgiving in unfair ways. For example the hitbox on the coin being very small and launchpads not always exploding unless you hit them just right. My suggestion would be to make the hitboxes more forgiving so that you can increase the difficulty of the levels as the game progresses.
I want to see more of this!