Nintendo Entertainment System (NES) - 13 Games.
Dr. Mario.
Mario and Yoshi.
Mario Bros.
Mario Bros 2.
Mario Bros 3.
Mario Bros (Unknown) - Beta of never released Mario Game.
Mario Bros. Classic.
Mario is Missing.
Mario's Time Machine.
NES Open Tournament Golf.
Wario's Woods.
Yoshi.
Yoshi's Cookie.
FamiCom Disk System (FDS) - 5 Games.
All Night Nippon Super Mario Bros.
I am a Teacher - Super Mario Seta.
Kaettekita Mario Bros.
Mario Bros.
Mario Bros. 2 - (the Lost Levels).
Super Nintendo Entertainment System (SNES) - 15 Games.
Mario All-Stars
Mario and Wario
Mario is Missing!
Mario Kart
Mario Paint
Mario R.P.G. - Legend of the Seven Stars
Mario World
Mario World 2 - Yoshi's Island
Mario's Early Years - Fun with Letters
Mario's Early Years - Fun with Numbers
Mario's Early Years - Preschool Fun
Mario's Time Machine
Tetris & Dr. Mario
Yoshi's Cookie
Yoshi's Safari
Nintendo64 (N64) - 11 Games.
Dr. Mario 64
Mario 64
Mario Golf
Mario Kart 64
Mario Party
Mario Party 2
Mario Party 3
Mario Tennis
Paper Mario
Super Smash Brothers
Yoshi's Story
GameBoy (GB) - 9 Games.
Dr. Mario
Mario and Yosh
Mario Land 2 - 6 Golden Coins
Mario Land 3 - Wario Land
Mario Land
Wario Blast
Wario Land 2
Yoshi
Yoshi's Cookie
GameBoy Color (GBC) - 4 Games.
Mario Bros. DX
Mario Golf
Mario Land 4 - Wario Land 2
Mario Tennis
GameBoy Advanced (GBA) - 16 Games.
Dr. Mario & Puzzle League
Mario Advanced
Mario Advanced 2
Mario Advanced 3
Mario Advanced 4
Mario and Luigi - Superstar Saga
Mario Ball
Mario Golf - Advance Tour
Mario Kart - Super Circuit
Mario Party Advance
Mario Pinball Land
Mario vs. Donkey Kong
Wario Ware Inc.
Wario Ware Twisted
Wario-Land 4
Yoshi's Universal Gravitation

Originally Posted by Kaizue Oshi, that is quite the bundle, though I have most of them besides the little kidy ones. Thanks. (Mario was made for extreme gamers)