Walmart has the LEGO Super Mario Guarded Fortress Expansion Set Collectible Building Playset (468 Pieces) for only $40! (Reg. $50) This 468-piece, collectible, creative LEGO building toy makes a fun birthday party or holiday gift for kids aged 8 and up to add to their Adventures with Mario Starter Course 71360, inspiring them to build their own unique levels. Choose in-store pickup or try the FREE 15 day trial to Walmart + to score free shipping.