20. New Super Mario Bros Wii, Wii (2009) Nintendo (last year 17)
Anticipation for NSMBU (look for it on this list next year) pushed this one down the rankings a little, realizing how relatively samey it was compared to the other NSMB games. Samey or no, however, the game really showed the art of 2D platforming refined down to a science, and that kind of polished-to-a-T refinement that often make Nintendo games as great as they are.
Monster Hunter: pissing me off since 2010.