Waluigi's Motocross is a custom track in development made by wiimaster35000vr. The track takes place in a Waluigi-themed motocross arena. The original model was built by Björn and then thrown away, but later, it was given to wiimaster35000vr as well as with the author rights.
SpyKid, for helping with the Mario Kart: Double Dash!! item box textures and fixing the course model's textures.
Atlas, for the Super Mario Odyssey Power Moon object.