- Join Baby Mario and Baby Luigi for a balloon-busting race that's full of shell-flinging chaos and karting fun - You get two racers, six buildable balloons, and their trusty rides Buggybud and Tri-Speeder - It's great for kids aged 8 and up, whether they're into building, gaming or just love a good race - Designed for solo play or head-to-head battles, this set keeps the fun rolling long after the finish line - Add LEGO Mario, Luigi or Peach (sold separately) to trigger proper Mario Kart sounds and effects