Lol, my thread pretty much died, so I figured I'd retreat to this one.
Donkey Kong
Donkey Kong Jr.
Mario Bros.
Super Mario Bros.
Super Mario Bros.: The Lost Levels
Super Mario Bros. 2
Super Mario Bros. 3
Super Mario World
Super Mario World 2: Yoshi's Island
Yoshi's Story
Super Mario 64
Super Mario Sunshine
Luigi's Mansion
Super Mario RPG: Legend of the Seven Stars
Paper Mario
Mario&Luigi: Superstar Saga
Super Mario Land
Super Mario Land 2: Six Golden Coins
Super Mario Land 3: Wario Land
Wario Land 2
Wario Land 3
Wario Land 4
Wario World
Mario VS. Donkey Kong
Donkey Kong Country
Donkey Kong Country 2: Diddy's Kong Quest
Donkey Kong Country 3: I Forget the Title ^_^()
*Whew* That about does it. I know you're thinking "Hey, the Donkey Kong games don't count!" But I have always considered them as being part of the Mario universe, so oh well.
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"In Paris they simply stared when I spoke to them in French; I never did succeed in making those idiots understand their language." - Mark Twain