I like the difficulty of the game, but found the input a little frustrating to get very far. A short "coyote time" or input queuing could help since the bounciness of the ball makes it difficult to time inputs. Also this might just be a me thing, I find it more intuitive to have an action occur due to a mouse down than a mouse up.
Viewing post in Shapes And Platforms jam comments
I made it so that when you release the mouse button it makes the ball jump because then it takes more skill to do things like jump off of walls, which you can do if you time it right. It also has to be when the mouse button is released because then if you're still touching the ground after you jump, it will jump multiple times. Thank you for your input!