I would have rated a three as well due to the instability. I've repeatedly asked why you don't place a wedge under a ball that R must walk over and you still don't . The ball drop at 43 seconds, I see you added a frozen draggable to help R out but a wedge would have been better as R may not make it back to the draggable. That ball was still spinning when R got to the win and my R just made it back in time as R came across the stairs diagonally. The next ball drop again no wedge, your video even showed R going side ways for NO REASON. On a different note, my B after dropping the 1st ball, didn't make it back onto the slider but was forced to the white space. On my 2nd go at that move, B just wanted to go up not out but I noticed the ball below was spinning so may as well start again. Very disappointed.