Po

Spoiler: How to win

...
right away
I was testing make democard
to find out how can that R
able to do sailing boat too.

at first, I assumpted it was
about how we set direction of boat & R.
they dont want to move.
turned out, what making it work is star.

here is the demo card

@Ray Aznable Thank you for playing. Btw demo autowin

the logic of the level is very cool as always! And beautiful design. But there are several problems at this level:
1) It is inconvenient to direct R indoors - poor accessibility for maneuver and difficult to press, especially the autoslider interferes. There is a click right behind the autoslider - it's very inconvenient.
2) Deception of the direction of avoiding a low ceiling is unstable.
3) My stack on a high star often falls apart - R is very fond of jumping off B's head. This has happened many times. I watched the video to get it right - it needs hard timing. at the long level at the end it is a problem that causes a restart.
4) I couldn't guess the final move because I watched the video. Even after watching the video - I tried to repeat and got stuck on the stairs. It was 10 restart I was tired. Sorry I couldn't finish

PS. Of course, a bot pushing a free element is a cool thing!

@Denis Nazin
1. Noo-Noo is really annoying, He likes to suck Tubby Toast.
2. It's very stable.
3. It's simple, R don't face the wedge when doing low ceiling.
4. If you notice, I often put this move on my level.

I have change the demo card

Unfortunately I had to agree with some of @Denis Nazin points and also the ball didn't always roll well for me. There are times they just stopped or went to the white space. Needed the video for the final move.

By the way, how is R able to ride the boat? I had tried to make something similar but failed. Is it because of the star?

...
@ohmytian
check demo card in my comment

Excellent!

@Ray Aznable Thanks - I didn't notice it until you told me. So it is because of the star. Interesting.

@ohmytian @FXCX Thank you for playing.

Why does the move at 1:21 work?

@MekaSage Because R blocks the low ceiling path. Why the low ceiling path turns (?) I don't know.

@Labyrenight @MekaSage The default path for B after low ceiling will be turning to the left because it's in the x-axis. Put R there(to block the path) so B will proceed straight in the z-axis. B's low ceiling preference will be X then Z.

I tried your level again. I was sure that I already know your long level very well and I will pass it the first time and finally I will give you 5 (despite a large number of inconvenient things, the logic of the level is of course 5). But! The level failed me again 2 times:
today my scooter parked incorrectly twice in a row and R went upstairs - this is definitely a restart. I don't know what's the matter - this level rejects me. I'm sorry my friend, but I give up.

P.S. By the way, I agree with @ohmytian - I also had the ball rolled the wrong way once - this is due to the fact that you have stairs on the sides of the ball (they have a half-empty body, so they do not give the correct and stable direction of the ball). When I was running from a low ceiling, I accidentally hit the ball - the ball did not hit the hole