What a cute and joyful game!
The puzzles are creative and have a smart yet nuanced trickyness which requires you to plan out your moves in advance. The floatiness of the blocks make the game fun to control, and the music and sound effects bring it all together into a sweet and delightful experience.
One thing I definitely had trouble with was some tricky platforming (a couple jumps that had me wrap around blocks), though this is probably due to me "creative" solutions to some of the puzzles.
Overall really enjoyed it! Congrats on submitting such a great game to the jam :)