Do I really need to say something about this game? If I do, I’m guessing you are either very young, or isn’t really much into gaming… xD
Anyways, Super Mario Bros. 3. You know it, you played a lot of it, to the point of finding some of the secret levels, the flutes, getting behind the white panels, etc etc.
This is also the game that has the one Mario transformation I liked the most… if you thought Tanuki (tail), you thought…. WRONG!!
My favorite one is Kuribo’s shoe (that big green boot). Why? I dunno.. I just really really liked it! 😛
Source: NESguide
This was probably my favorite Mario game. And it was even originally revealed in one of the best video game related movies ever “The Wizard”, which showed how to get the first warp whistle.