It's a fair bit of a frustrating game. It is the intention and I kind of like the coyote time requirements... but it isn't well executed all the time. Like getting fatigued isn't well expressed when the player has recovered. Making everything slippery and so early on doesn't really mess with the player's senses, it more just means its a slippery game on top of a floaty game. The blur effect at the end of the game harms the gameboy vibe as well without being anything difficult. Considering overall it is supposed to be difficult, I'd just say it's okay though.
As for music, it is pretty simple and quite short. Gets the job done. Something longer that doesn't loop so much would be nice. It is also unfortunate the level track plays over the victory track.