Mario Kart DS
Mario Kart DS is a racing game for the Nintendo DS featuring numerous Mario characters, as well as R.O.B., who hails from two old NES games, Gyro mite and Stack-Up. The players not only have to race, but can also use items to attack each other. This game is very similar to the Mario Kart game on WII. Mario Kart DS features 30 courses. Mario Kart DS also have 17 Items to use.
Super Smash Bros. series
The Mario Circuit track appears as a stage in Super Smash Bros. Brawl, one of the karts appears as a trophy in SSBM, and Bowser's dash in SSBM utilizes a motor, presumably from his kart. In addition, the aforementioned Mario Circuit stage contains Shy Guys as a hazard, presumably a reference to fact that Shy Guys have to be used as racers in Multiplayer if a player does not own Mario Kart DS.
The theme for Waluigi Pinball was remixed for Super Smash Bros. Brawl.
