Thanks for the video - I didn't notice it until I was done. I couldn't see how you wanted B to get onto the brick way to have R pass over so I used the slider to push B from the stairs onto the bricks. Risky but it worked. I dropped a star for the risks taken with R, like the first push, walking over that ball a few times as the ball is spinning. Your video even showed B almost falling off thanks to the ball. Stability is important and shouldn't be used as the challenge. EDIT - Forgot to mention, your levels seem dark or somewhat hard to see - maybe it's all the rails causing shadows?
Wow,your intended way is very clever....buff,I wasn't able to see that(I mean,the way to put B in the zone that seems impossible to access)so I used a push,very forced...I was lucky and I completed the level...I add a star because I loved your way...Thanks for sharing @EL797