A tricky little puzzle-platformer. I really like how the challenges were randomized, I felt like I didn't know what I was going to get each time.
A few suggestions: 1) After the player loses, leave the scene running for a second or so. This gives the player a chance to see what they did wrong. 2) Since the levels are timed, the player should be able to see the timer. 3) Since the puzzles only take up a small part of the screen, all the visuals could be larger.