Failed to see the critical move here as i presumed the ball was too far away and discounted the stumble that i had seen as an option . Instead i tried the second ball on the far side of the draggable(furthest from winblock) and tried to squeeze R up unsuccessfully.
It may be short but the gameplay is fun! The grass with stone blocks below it doesn't quite appeal well for me. The part where B has to fall after you move the draggable is sometimes unsuccessful. B tends to get pushed to the pillar. The move requires a good combination of fast and slow control or maybe luck so that B will fall. What I did for my two latest tries is to use autopilot so that B will surely fall. My favorite parts are the first bump and the part where B has to nudge the ball towards the stairs. It's not really that tricky. All you need is to make sure that B is really facing the stair block. You can simply flick the draggable so the ball will appear and B will nudge it.