You need a clone button or something to get more parts, I was goin to give 4/5, then I updatet and was close givin 3/5 but because of the minecaft grass-block 4/5 :D
when the balll stops at the ''floor'', click at the middle bottom f the ball, then it goes streight up and it is much more easy, with that I made a highscre at 59! :D