The concept is nice, but i would recommend to consider some points -
1 - instead of S key to pickup you should have used E button, because in most games, E key is used commonly for interaction.
2- When jumping and moving the ball should also use the velocity of the player, and move accordingly so that the controls will feel fluid.
3- adding more sound effects when ball gets inside the basket or when hits ground.
I think these changes will make the game a lot better.