Great little game! The colors are very pleasing to look at and the overall presentation is really nice, however, I noticed that if you keep holding the jump button, when the player collides with the floor, it gets launched into the air with more height than a regular jump, which I imagine is not an intentional feature.
Also I feel like the game could feel a little tighter, I don't see any reason for the player's collision shape be a capsule, since its literally a square, and could potentially make people fall by accident in difficult jumps, also I think this game could really benefit from having controllable jump height, especially in levels that require precise timing and positioning.