Mario "invents" the wheel, and the Cave People discover traffic jams and fender benders. Frustrated, they banish Mario and Luigi to Lava Land. Then Kooky van Koopa builds a gigantic "Big Foot" drawn by evil dinosaurs. // On the hoopy world of Hoopland, Kevin, Lana and Larry Bird find themselves in a race against a real-live Clockman.

Kootie Pie steals Mama Fireplant, the source of the cave people's fire, and Mario, Luigi, Princess Toadstool and Yoshi must go to Ice Land, where Yoshi must overcome his fear of water to rescue his friends. // A pitstop on the world of Nottingham to fix the warp wagon teams Kevin and Kid Icarus with Robin Hood and his Merry Men to halt the devilish deeds of the Sheriff.

To feed his hungry evil dinosaurs, King Koopa lures the cave people to a prehistoric circus at the Neon Castle with his Flying Clown Head and Mario, Luigi, Princess Toadstool and Yoshi must rescue them.

A Koopa Wizard captures Mario, Luigi, Princess Toadstool as they search for Oogtar, a brash cave kid who's lost in the Enchanted Forest. // Responding to an SOS from the world of Tetris, Kevin, Lana and Simon must face off with an army of humanoid Tetris blocks, controlled by a nasty Puzzle Wizard with a cracked sense of humor.

King Koopa opens a Fast Food Stand serving Egg Scoopa Koopa sandwiches which are highly addictive and turn his consumers into Chickadactyls! Luckily Mario hates eggs. // Mother Brain, Eggplant Wizard and King Hippo warp the N-Team and Bo Jackson inside Baseball World, then move into the palace with Princess Lana as their unwilling lady-in-waiting.

After being scolded by Mario and Luigi, Yoshi runs away and joins a motorcycle-riding evil dinosaur gang who use him to kidnap the Mario Brothers for King Koopa.