8. New Super Mario Bros. Wii (Nintendo Wii)
Again proving that Mario in 2D is where he sells the most units, Mario Bros Wii took the nostalgia factor and hit it to ten. Still, Nintendo didn't rely entirely on fond memories and loaded the game with new ideas including 4 player co-op play and clever use of tilt and motion controls. This game also brought back a resurgence in 2D platformers on home consoles, and led the way for Donkey Kong Country Returns, Sonic 4 and Rayman Origins.
7. New Super Mario Bros. (Nintendo DS)
Just beating its direct follow up is the game that put Mario back in two dimensions. After his DS launch remake of Mario 64, the man with a moustache surprised everyone by bringing his first new 2D adventure since the days of the SNES, and boy did he prove he was still king of the 2D platformer. This game went on to sell insane amounts of copies due to its simple pick up and play fun factor. The game also served as a massive nostalgia trip for gamers from yester year with all of the elements that made Super Mario Bros 1 and 3 so addictive back in their day.