LEGO Super Mario Bowser's Castle Boss Battle Expansion Set 71369

This is the Bowser's Castle Boss Battle expansion set from the LEGO Super Mario line. It's a pretty substantial build with over 1,000 pieces, featuring the iconic castle towers and a Boo figure. It's designed to work with the interactive Mario figure from the starter course, so you can play through the level and take on Bowser. The box is still sealed and in great shape.