Time to face the final boss! The LEGO Super Mario Prince Florian and Castle Bowser (72042) boss battle building set brings the epic finale of Super Mario Bros Wonder to life for young gaming fans ages 9 years old and up. Kids can build the massive flying Castle Bowser complete with fireball-shooting action, a detailed interior including a cell to trap Prince Florian, and the ability to lift off its stand so kids can 'fly' it around a room for dramatic battle scenes! Young builders can help the heroic Pink Yoshi and Prince Florian figures take on the menacing Wonder Bowser Jr. and Fiery Note Piranha figures in thrilling rescue missions. The castle features incredible interactive elements that make battles come alive! Builders can lift Castle Bowser off the stand and set down to reveal the detailed interior where Prince Florian is trapped in his cell, then lift the whole castle off the stand (or just lift the top part) to 'fly' around and shoot fireballs from Bowser's mouth. Kids can place an interactive LEGO Mario, LEGO Luigi, or LEGO Peach toy figure (from sets 71439, 71440, 71441 or 72043 – each sold separately) in the playset to trigger digital reactions and play out the Super Mario Bros Wonder final boss battle. This fun-packed building set is perfect as a gift for kids who love the Super Mario games, building toys, and action-packed pretend play. Young gamers can combine this set with other LEGO Super Mario sets (each sold separately) to create an entire LEGO Super Mario universe. The LEGO Super Mario app provides step-by-step digital instructions and creative ideas to guide construction; for a list of compatible Android and iOS devices, visit LEGO.com/devicecheck. Contains 1,251 pieces.