This one is really lovely! I really enjoyed being able to bounce the pufferfish into the bubble, which is a neat way to reward quick thinking and creativity. I did get really mad sometimes when the bubble got trapped under the board and immediately lost from bouncing between the bottom of the board and the ground -- if this rage-inducing mechanic is not intended, I would suggest letting the bubble pass through the board when going upwards to prevent getting trapped. Excellent polish and music as well!