Mario Kart Live: Home Circuit -Luigi Set – Nintendo Switch Luigi Set Edition – Link

Amazon has this marked down to $74.99 w/free shipping.

• Use your Nintendo Switch system to control a real-life Mario Kart
• Create a course in your home by placing gates and watch the race come to life on screen in augmented reality
• The kart will react as you boost, hit items and drift around the course
• Unlock in-game environments, gates, costumes and more as you play
• Up to 4 players can race around the house together (additional games, systems and karts required; Sold separately)