I can't believe this soundtrack is AI-generated; it's incredible. I'd give it a very high audio score, even though it's AI-generated.
However, it's a pity that besides the dolphins, the sharks have no animations, and there aren't any other types of enemies. At first, I thought I wasn't running far enough, so I tried running further to find other enemies. I ran nearly 40nm, and it seems that's all there is to the game.
Adding some other items and enemies would make it more interesting. If you want to make multiplayer battles more fun, you could take inspiration from Mario Kart—that's my suggestion.
Also, I expected there would be waves, but there weren't. If the waves could help me get over the boats, it would better convey the theme (I tried to get over them, but I ended up getting stuck on them, my speed dropped to 0, and I couldn't do anything).