The puzzle design in this was pretty slick. At first I really liked the sound of the penguin hitting the green blocks, then penguin flying through above the obstacles, and then under them! The progression felt very fun and made me always more curious as to what puzzle or mechanic will appear in the next room. I also loved the little rooms full of coins with arrows guiding you to collect them all. Same with the big rooms where you need to walk up for some time, it built some suspense. Great job with this!