We all know Super Mario Bros. 2 wasn't the follow up to Super Mario Bros. in Japan and that it was originally Doki Doki Panic and translated into English for an American audience. That reason being the big factor on why some Mario purists don't consider it a proper Mario game. Super Mario Bros. 2 celebrates it's 30th anniversary this year and as such Arcadeology has a focused retrospective on the game and it's history in the franchise. It's the deepest dive about Mario 2 i've seen to date and it showcases many of the improvements made over Doki Doki Panic. In fact, i'd say Mario 2 is superior to Doki in nearly every way and since Doki started out as a prototype for Mario and then later was translated into a Mario game by a Mario team, it's a proper Mario game. Open to others thoughts here but Mario 2 is one of my favorite in the franchise because it's so unique and I don't think it standing out is any kind of weakness to it.