Ninjutsu master

Spoiler: Tip 1

The doors of the building can slide open inwards.

Spoiler: Tip 2

Use springboard stairs.

Spoiler: Tip 3

See those metal blocks?

Spoiler: Tip 4

B can squeez in between the rotors. Hold the draggable up until B flips his pillar-head horizontal.

Movie of the solution.

Spoiler: Movie

Spoiler

Had to keep ramming the free column with the slider to get it to fall properly as B never played the part as well as in your movie. Entertaining if somewhat straightforward from there for those who've played other "tall hats" levels. Great fun though, and typically great architecture. Loved those sliding doors!

@Don G Rowe Ramming or moving? Thanks for the review!

Spoiler

Ramming in order to get it to fall correctly so it could then be pushed into place for B to walk over. Couldn't get B to execute the push in your movie using springboard stair.

@Don G Rowe

Spoiler

Did you sent B to the metal block, i.e. with B on the stairs tap both metal blocks for the springboard trick?

Spoiler

No, I tapped the desert block in front of the stairs. B pushed the column 45 degrees clockwise. Then had B walk up in front of the column and rammed it with the slider to tip it over backwards.

@Don G Rowe

Spoiler

Ok, that's a more difficult approach. If you sent B to the metal block within the springboard trick, he rotates the beam about 180 degrees.

Another great level. BTW, I needed help with a few steps. Thanks

@gmacpro I can imagine. As I seem unable to force myself to make easier level, I just make a movie and give some hints.

A lot of funny tricks there!

Amazing collection of tricks in a great story level. Some steps were really great as the tunnel one. Very enjoyable. Thanks!

Awesome level with great level design! Very nice use of the tricks! Thanks!

That was totally fun! Really an incredible level with creative tricks. Thanks BB!

I'm wondering how to get R down.The movie is not available for me.I had made B to the first ball.