I had some difficulties with this poll, since I decided many times of what 2D mario games to put in this (expect New Super Mario Bros. Wii, Super Mario Maker 2 and Super Mario Wonder).

𝗪𝗵𝗮𝘁'𝘀 𝗠𝗮𝗿𝗶𝗼 𝗕𝗿𝗼𝘀?

Arcade game from 1983, the goal is to defeat enemies by kicking them (jump to bang his head against the platforms), you can also use the POW block, which can stuns all the enemies (limited number of times).

𝗪𝗵𝗮𝘁'𝘀 𝗦𝘂𝗽𝗲𝗿 𝗠𝗮𝗿𝗶𝗼 𝗕𝗿𝗼𝘀.: 𝗧𝗵𝗲 𝗟𝗼𝘀𝘁 𝗟𝗲𝘃𝗲𝗹𝘀?

The second game of super mario saga, a sequel to Super Mario Bros, considered too hard for americans and europes people, subtitled as "Super Mario Bros. for Super Players".

𝗪𝗵𝗮𝘁'𝘀 𝗦𝘂𝗽𝗲𝗿 𝗠𝗮𝗿𝗶𝗼 𝗕𝗿𝗼𝘀. 𝗗𝗲𝗹𝘂𝘅𝗲?

Abbrevation of Super Mario Bros. DX, a remake of Super Mario Bros and Super Mario Bros.: The Lost Levels, contains a largely unmodified version of the original, including new gameplay features, two-player race mode, a challenge mode for individual levels and miscellaneous toys and collectibles.

𝗪𝗵𝗮𝘁'𝘀 𝗦𝘂𝗽𝗲𝗿 𝗠𝗮𝗿𝗶𝗼 𝗟𝗮𝗻𝗱 𝟮: 𝟲 𝗚𝗼𝗹𝗱𝗲𝗻 𝗖𝗼𝗶𝗻𝘀?

The sequel of Super Mario Land, after the events, Wario puts an evil spell over Mario Land while Mario was away in Sarasaland, he must find the 6 golden coins to gain access to his castle.

𝗪𝗵𝗮𝘁'𝘀 𝗦𝘂𝗽𝗲𝗿 𝗠𝗮𝗿𝗶𝗼 𝗪𝗼𝗿𝗹𝗱 𝟮: 𝗬𝗼𝘀𝗵𝗶'𝘀 𝗜𝘀𝗹𝗮𝗻𝗱?

The prequel of Super Mario World and the entire saga of Super Mario Bros, you will play as Baby Mario with Yoshi.

𝗪𝗵𝗮𝘁'𝘀 𝗦𝘂𝗽𝗲𝗿 𝗠𝗮𝗿𝗶𝗼 𝗔𝗹𝗹-𝗦𝘁𝗮𝗿𝘀?

A collection of platform games for Super Nintendo Entertainment System, contains remake versions of Super Mario Bros, Super Mario Bros.: The Lost Levels, Super Mario Bros. 2, Super Mario Bros. 3 and Super Mario World.

𝗪𝗵𝗮𝘁'𝘀 𝗡𝗲𝘄 𝗦𝘂𝗽𝗲𝗿 𝗠𝗮𝗿𝗶𝗼 𝗕𝗿𝗼𝘀. 𝗪𝗶𝗶?

The sequel of New Super Mario Bros. for nintendo DS and one of the New Super Mario Bros. saga, with more powerups and the same secret exites, you can also use Luigi (if you die 8 times in a row) for his super guide.

𝗪𝗵𝗮𝘁'𝘀 𝗡𝗲𝘄 𝗦𝘂𝗽𝗲𝗿 𝗠𝗮𝗿𝗶𝗼 𝗕𝗿𝗼𝘀. 𝗨 𝗗𝗲𝗹𝘂𝘅𝗲?

The remade version of the original New Super Mario Bros. U from 2012, sequel to New Super Mario Bros. Wii and the fourth and final entry of New Super Mario Bros. saga, following New Super Mario Bros. 2, you can play as Mario, Luigi, Blue Toad, Yellow Toad, Toadette, Nabbi and Mii.