Nice design Thank you for this painful experience @Ray Aznable would like to make a video solution for this level : ROTF:: ROTF: 86 lebak bulus Spoiler
Whew! B has to be unstable when he/she/it is on the stair block. That's the time you can press the white floor. Pushing B is a little bit risky. Good thing, the wall is high. Thanks for sharing , @shr !