Spoiler: Behaviour - B will not walk off a sliding metal stair when outside the grid - B will can not see a sliding metal stair when outside the grid Spoiler: Trick List - auto pilot - slider hold to slow B down - quick slide - mid air tap Spoiler: Video Solution
Quite different and very tricky with all the sliding metals interactions. I suspect the water might give the first ball infinite spinning force as sometimes the ball miraculously still went to the correct place. I used the same gameplay.
It was only after the low star ball came to rest that I realised I should have something different . However i was still able to get to the second top ball using an autopilot. Otherwise my gameplay was the same.
That was a very fun tricky level... we have the same gameplay except one thing... Spoiler I did not need "slider hold" trick cause I did that autopilot in a different but safe way... thanks @Meko Guy
... the logics are affordable, but the stair from white to back often caused me to get zapped. altho i always did hold slider to make B climb up stair slowly, but still got zapped. recovery card needed, start after push ball with star at its side.