That was a neat game, especially for a solo project. The one major thing I would say you should focus on is the animation as there's some mistakes here and there with it that you could iron out such as the sprite offsets. Also the game should have more interesting goals to attain for so the player doesn't get too bored figuring out what to do. On a positive note, I liked the diving mechanic and I believe that was well done! Overall, you did a great job on the game!