Pretty cool. Could definitely use some tweaking, but a good start! I kept constantly launching through the floor in level 2, so that's maybe a bug. Maybe you should make the force with wich you shoot the ball dependant on how close the cursor is to the cube. That would give you a lot more control. Overall, nice game!
Please check out our game at https://itch.io/jam/gmtk-2019/rate/463868! Any feedback would be greatly appreciated!