Very creative ideas in this platformer! I like the hidden platforms and false walls. It makes for some really cool level ideas. It was fun finding the coin in each level, like a treasure hunt!
There was something about the movement itself that didn't feel quite right. I think it was too fast maybe?
I keep going back and forth on whether I like the rounded edges on the platforms. It made it easier to reach them, being able to roll onto platforms that were just out of reach. On the other hand, landing on the edge of a platform led to the player sliding off. This combined with the movement speed made it hard to recover at times.
I liked that each level was short enough and self-contained so that dying didn't feel like too big of a punishment.
Great job!