Super Mario Land 2: 6 Golden Coins

Super Mario Land 2: 6 Golden Coins was the reclamation of Mario Land after it had been taken over by Wario.

History
"While I was away crusading against the mystery alien Tatanga in Sarasaland, an evil creep took over my castle and put the people of Mario Land under his control with a magic spell. This intruder goes by the name of Wario. He has been jealous of my popularity ever since we were boys, and has tried to steal my castle many times. It seems he has succeeded this time. Wario has scattered the 6 Golden Coins from my castle all over Mario Land. These Golden Coins are guarded by those under Wario's spell. Without these coins, we can't get into the castle to deal with Wario. We must collect the 6 coins, attack Wario in the castle, and save everybody!"

- Mario

Mario journeys through each of the six zones in Mario Land and battles with its brainwashed citizens for the 6 Golden Coins.

With the castle now accessible, Mario scours up his transformed castle and meets up with Wario in the castle's throne room. Wario battles Mario, using the same items Mario used during this adventure. After defeating Wario, the castle returns back to normal and Wario's spell on its citizens was removed.

Timeline

 * Direct sequel to Super Mario Land.
 * While Mario was away in Sarasaland, Wario took over Mario Land, likely because he didn’t get to name it Wario Land during Mario Party 2.
 * Tatanga reappears.