2. New Super Mario Bros
It's 2006, the time when we could release a product and just slap the word "New" (see "New Coke") in front of it is gone, isn't it? Nintendo didn't seem to think so. When I played this at a Nintendo event prior to it's release I remember thinking "They'll change the title, they can't just call it New Super Mario Bros.". Apparently they can and did, and it is now a popular sect of Mario video games, having titles on the DS, Wii, Wii U and 3DS.