Sesame Street Mecha Builders Episode 12 Let's Get Rolling! / A Bit of a Stretch! Episode Title: Let's Get Rolling! / A Bit of a Stretch! Episode Description: It's MacBarm's croquet tournament and Zee made giant decorations but they're too big to get to the farm. It's the opening day of the skyscraper and the Mechas need to put the sphere on top of the building before the ribbon cutting ceremony.