Wobble Heads

Spoiler: Ending Hints

- place B on the up side down stairs and watch what happens (B gets shorter)
- the brick isn't a good place for B

Spoiler: Video Solution

Enjoyable clean win. My win was slightly different about 1:45. After the trailer tried to squeeze past the truck first two times, i placed B one block anticlockwise and that seemed to allow an easier linking then moved B one place along.