Great level. Much zapper danger but not hidden and, if careful, passable. Spoiler: shortcut The lift on the far left of the screenshot can be climbed easily from outside the level.
Just found an easy double shortcut. Spoiler: double shortcut 1. Move out of the level by the staircase at the start. 2. Move to under the lift on the left side of the screenshot. With correct timing, B climbs the lift. 3. Raise the 3-block lift near the win. 4. Move B up the stairs and push him against the 3-block lift. B falls onto the 3-block "pillar" next to the win. 5. Lower the 3-block lift with speed, bumping against B's arm. B falls onto the win. Btw, levels with shortcuts are fun.