The Conkdor's Noggin Bopper Expansion Set (71414) is a must-have for LEGO Super Mario fans looking to expand their interactive play experience. This set features a big, buildable enemy Conkdor figure for an interactive battle against LEGO Mario, Luigi or Princess Peach figures (not included). With fun play features like a trigger that sets off the Conkdor's attack and a springboard to make it rise again, kids will love stomping on the action tag on its head to defeat the character. Designed for use with a LEGO Super Mario Starter Course (71360, 71387 or 71403 – required for play), fans can use the companion app to download building instructions and enhance their creative experience. Collectible LEGO Super Mario Starter Courses and Expansion Sets provide fans with unlimited ways to create unique levels for digital coin-collecting play. This 130-piece set is a great gift for kids aged 6 and up who love Super Mario and measures over 5.5 in. (14 cm) high, 2.5 in. (6 cm) wide and 6 in. (15 cm) deep.