I loved the music! The little robotic "FIskBoi" was hilarious. The jump sound was a bit grating though.
Overall the platforming mechanics are a bit basic but they do OK. The above water/underwater requirements were a bit interesting, but overall it felt like I just had to stop playing the game for 5-10 seconds every time my meter was running low. If more of the platforming had been underwater, and if the meter filled up a bit more quickly, it might have been a bit better.