U-boat

Curious compact level. Thanks!

Spoiler: Question

No sure I finished as designed... I didn't use the stair and used just one of the sides.

I didn't use any tricks nor one half of the boat. I'm guessing I didn't do it as intended.

Enjoyed your design but someone needs to fire that submarine captain, he drove it into the rocks!

Fun level, I feel like it would have been better used as a small element in a larger puzzle, but as a small treat, it's good enough. Thanks!

Really fun logic level

Thanks @chemi @gmacpro @Death @Chuckthulhu @PvB

Here is the movie with intended way.

Spoiler: Intended Way

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@Ítalo totally different than my soln

Spoiler: My Way

After smushing B up to the spinner, I carefully pushed B with the metal half pillar until he rolled up on top, from here he walks to the win.

I solved it like @Death

Nice compact level although I did it with a different ending...Thanks for sharing and well done @Ítalo
Btw....my way
https://photos.app.goo.gl/mWcL2HYOh1i0pKt92

Nice way @delator77 and thanks for your comment and rate.