Super Mario games are pretty high on my list of all-time favourites. A lot of them are incredibly innovative despite their similar nature, as Nintendo seems to be able to find the one small thing which can make an old concept look new again. Super Mario Galaxy had the planets and low gravity. New Super Mario Bros. Wii had a cooperative/friendship-destroying mode. Super Mario World had Yoshi. As for New Super Mario Bros. 2 for 3DS, which I just finished a few weeks ago, well... it's got a shitload of coins.
