I liked the fast paced gameplay. The jumps were a bit hard to master, but then you just fly through the level!
I think there is one that is impossible to beat? The cactus seems too far from the level in mid air.
The rewind feature is a nice mechanic to return to a previous state before a bad jump, but I don't know if I'm doing it wrong, the return path seems extremely short or the time to rewind is too low.