LEGO Super Mario Big Spike’s Cloudtop Challenge Expansion Set $39 at Best Buy $39 $70 Best Buy has the 540-Piece LEGO Super Mario Big Spike’s Cloudtop Challenge Expansion Set (71409) for $39 with free shipping. Includes 3 Mario popular enemies a Big Spike, a Boomerang Bro and a Piranha Plant. $39 retail: $70 Report Posted by VanGogh04/23/2024 at 12:43 PM PT