This is pretty fun! I like the animation of the fish slowly drooping its tail while in the air. And I also like how you can customize your own fish! The fact that you can only move while in the air is pretty cool, but I feel like it could be abused by some players who always jump? Maybe you can experiment with a timer that allows you to jump only when it's full or smth. I didn't really noticed how much score the starfishes gave so maybe you could try adding some +1 text at the score? All in all really fun and addicting game, I got to a high score of 1456! (im pretty bad at it)