In the stock room make your way to the far side of the room. Here you will find a scale that has a large toy on it. The scale won’t move up until you move this toy off of it. To do that you need to move the crane on the ceiling of the room. Use the nearby lever to power it up. Pull the crane along the tracks in the ceiling (use crane on the Bunzo (4) statue in Aisle C5 if you want it) until you place it over the toy on the scale.
Once it is in position charge the Green Hand and use it on the crane to lower it. Move the toy off the scale then stand on it and push the red button to be raised up by the scale to the ledge above. Note before leaving you can grab the Cyan VHS Tape (3) from the ladder leaning in Aisle C1.