The concept of originated during development for Super Mario Land 2: 6 Golden Coins. The staff team aimed for a "change of pace". Rather than fighting for the benefit for someone else, the team wanted Mario to fight to regain something he lost. 's name is derived from the Japanese word "warui", meaning "bad", and his design was based upon the idea that a hero should have a good arch-nemisis. Wario's relationship to Mario was inspired by Popeye and Bluto. Bluto is physically well-built, motivated by self-interests, and more cunning than his counterpart, Popeye.
Wario first appeared in aforementioned Golden Coins, appearing as the final boss and main antagonist. Although he had brute strength and several of Mario's abilities (Fire Flower and Bunny form), he was soundly trounced. Now, is merely an anti-hero in the world of Nintendo, and has taken up microgaming and treasure hunting.
Chronologically, his first appearance is in Yoshi's Island DS, where as a toddler, he retained his greed and even had a magnet to attract money.
In this gameEdit
Wario is the main protagonist and player character in Wario Date. Wario starts off the game by eating garlic and practicing his stinky laugh, when a conversation on the TV catches his eye. It makes him decide that he can use love to scam some chumps outta their money. So he sets off to scam Luigi, Mario, Waluigi, Bowser, and even himself out of their money.
However, depending on the player's choice, Wario ends up finding true love in one of their hands (yes, he can fall in love with and kiss himself).
However, in the (presumably) canon route through the game, Wario cleverly manipulates all of 'em out of their loot, and ends up a very wealthy bastard.
In the climax, after scamming nearly everyone possible out of their cash, Wario decides to rob the most powerful man in the Mushroom Kingdom of his money. He threatens to steal Wario's cash instead, but Wario's Money Power overwhelms him and causes him to burst into a huge variety of dollar bills and coins. As they rained down across the Kingdom, Wario is a true hero.