Let kids add another fun challenge to their LEGO Super Mario universe with this Boss Sumo Bro Topple Tower Expansion Set (71388). This expansion set features the Sumo Bro character and a toppling tower. Players can use their interactive LEGO figures (sold separately) to knock down the tower and defeat the Sumo Bro. It's a great way to expand the play possibilities of the LEGO Super Mario Starter Course.