Hacker Mike Choi, who you might know as the engineer and co-designer of the Nintendo Flip Grip, revealed his latest unofficial Nintendo peripheral last week, complete with its own Nintendo Direct-style reveal. It’s called the Labo Fit Adventure Kart. The Labo Fit Adventure Kart is a multi-part invention that combines the Ring Fit Adventure Ring-Con, Nintendo Labo-inspired cutouts, Mario Kart 8 Deluxe, and an exercise bike, into a single workout game hybrid. The basic mechanic of the Labo Fit Adventure Kart is that the pedaling on the exercise bike will accelerate your kart in-game, while items and directional controls are handled by squeezing and turning the Ring-Con.