The Great Gold Coin Rush
Mario, Luigi, Princess Toadstool and Toad run through the wild Wild West in a chariot pulled by Ostros, while they are being chased by several Snifits and King Koopa riding on some other Ostros. King Koopa grabs a Piranha Plant from his pocket and aims it at the Mario Bros., and the Snifits do the same thing. Mario goes to the back of the chariot, grabs a Cobrat and uses it to fire back at the Koopa pack. A Snifit gets on the chariot, just to be beaten up and defeated by the plumber. King Koopa shoots a fireball at the ropes that Luigi is using to control the Ostros. They go in a different direction, heading to a cliff. Trying to brake, the Mario Bros. destroy the wheels, and slide down the cliff until they hit a stone.
King Koopa notices them at the bottom of the cliff, and goes after them. Toad spots a giant Warp Pipe leading somewhere, as the gang run into it. Bowser tosses a Bob-Omb into the pipe, destroying the entrance and blocking it with wreckage. In the dark, Mario sees a light thinking it is an exit, but discovers a big room filled with coins. Princess Toadstool says that it is the Lost Gold Coin Mine. While Toad is stuffing his pockets with some gold coins, Luigi is worried about getting out of the mine, and Mario says that they can dig a way out.
As the Mario brothers are almost at the surface, they are not sure where they are heading. The gang reaches a seemingly empty town, and then are scared by an elder who introduces himself as Calamity Clam. Toad asks him where they are. He says that the town is called Lonesome Mushroom. Calamity Clam says that it is a "little ghost town". Toad asks for an assay, and Calamity Clam takes them to it. He says that the coins are real, as miners look through the window. Seeing that, King Koopa attacks the town, turning the miners and Toad into his slaves to collect all the gold from the mine. Mario, Luigi, Princess Toadstool and Clam go to the Lost Gold Coin Mine to rescue the mushrooms.
Toad, in the mine, starts fighting with King Koopa after he throws a Bob-Omb at him, but fails and ends up running away from it. The Mario brothers and their friends notice the slaves, and Mario says he wants to get Fire Flowers. Calamity Clam says he knows a place with lots of them. After crossing the Tomato Sauce Mine and Pasta Mine, they reach the Fire Flower Mine. Mario and Luigi touch two flowers and become Super Mario and Super Luigi. Meanwhile, King Koopa orders more gold, but the Toads are very tired, which makes him angry. The Mario Bros. break a wall near there and frighten the Snifits. Bowser captures the Princess, and leaves riding a mine cart. The plumbers and Toad ride another mine cart, chasing him. As Mario touches King Koopa, he loses his Fire Flower power. Luigi loses it too, a little before the mine carts sink into the tomato sauce lake. Soon, they pull Princess Toadstool into their cart. Bowser runs over a wood gate, getting out of the mine. The trails split into two. King Koopa goes to the right path, and the brothers go to the left one, passing him. Mario stops the cart, and then jumps off it. Both carts collide and Bowser is launched towards a cactus, hurting him. In the end, everybody laughs.
Animation and continuity errors