The platform sensations are really clean! Moving and jumping feels fluid, and combined with the SFX and great animations, it's pleasing to move around.
Some mechanics are pretty interesting, like the wall cleaning or the coins to spawn with a crate. However I felt a lack of incentive. I didn't feel the necessity to finish the level as fast as possible, so I sometime had the impression to just do chores. Also while the pixel art is gorgeous, the dark platform weren't contrasted enough with the background, and where sometime hard to read.
That being said, the game has once again solid mechanics and physics! I had fun completing it just because of its juiciness, and its cool atmosphere. Well done!