1992 was the year that marked Mario’s first meeting with an irreverent villain, who would go on to become an important part of his life and future adventures.
In Super Mario Land 2: 6 Golden Coins, the mischievous and evil Wario made his dastardly debut.
http://darth-azrael.tumblr.com/post/150504581650/nintendo-1992-was-the-year
