No B tricks required. For R? Hmmmm Spoiler: Timing Part There's a "timing" part. It might be easier to use the 3D camera for that. Spoiler: Video Solution
Need to wait for long. Spoiler You used which B travels via over-Ball. I didn't do that, I did SBS at Slider where R goes up. When I saw last move in VS, to confirm if I am doing anything wrong then I was wrong. travel-Ball needs to rolled. Otherwise be doesn't get on Ball near Win. Nice discovery of half placed Stairs junction.
Would not have figured out how to shift the ball without the video solution. The rest of the level was fun with a lot of preparation work on Bs part. Enjoyed hitting the stair blocks !