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From Unmariowiki

Mario Fart is a Racing/Farting game. It is a spin off of the Mario Kart games. Mario and company get on racing Fart clouds and race for a prize. It has many features, icluding a battle mode, a farting contest, fart into the mic, and many more. The story is all of the food has been replaced by Beans, and the charecters fart like vehicles. Getting alot of fruit will cause Dirahrea to happen. The final boss, Fart the magnifacent Battles by throwing poop at the player.