Our heroes have come to Winterland so the Princess can visit her grandmother, but Koopa sees her crossing the forest all alone and plays big bad wolf.
The Marios, the Princess, and Toad are captured by Koopa and sent to his island dungeon Koopatraz where they engineer a daring escape.
Our heroes are chased through space by Darth Koopa and thrown into the Intergalactic Insinkerator.
Indiana Mario and his friends travel to Jungleland in search of a legendary golden statuette -- "The Lost Mushroom."
The Marios return to Brooklyn to find that Koopa has taken over and renamed the City Kooplyn.
When Toad accidentally spills a shrinking potion on the Marios they must overcome the perils of giant Troopas, drain pipes filled with monster-sized bugs, and Koopa's big feet.
In a flashback to their days of Basic Draining at the Brooklyn Academy of Plumbing, Mario and Luigi tell of their troubles with Drain Sergeant Kooperman and why the President of the United States called them to the White House.
Our heroes arrive in Down Under Land and have to save the Outback Mushroom People from Kangaroo Koopa and an army of crocodiles.
Mario loses his memory in the middle of the jungle and is adopted by two apes who rename him Marzan.
The Marios discover the Mother Lode of Gold Coins, but -- Klaimjump Koopa rides in and takes over.
Mario teams up with a friendly mushroom Indian named Pronto to rescue his friends from Billy The Koopa in the Wild West.
Our heroes travel to Desertland where they discover Koop-Tut has enslaved the Desertlanders and is enforcing an evil set of rules known as the Ten Koopmandments.
When the evil Koopa Claus (Bah Humkoop!) tries to stop Christmas, the Marios come to Santa's rescue and Toad learns the true spirit of giving.
The Marios, the Princess, and Toad arrive in Sock Hop Land to save the music king Elvin Parsley from Greaser Koopa.
Our heroes return to the oriental city of Sayonara where they combat Karate Koopa and his Ninja Ninjiis with the martial art of Plumb-Fu.
When King Koopa holds the Princess captive in his impregnable island fortress, the Marios get inside by hiding in a wooden "Trojan Koopa."