Super Mario Sunshine 64
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A fan-developed recreation of Super Mario Bros., not based on emulation or ROM hacking, but a native executable version.
A Koopa’s Revenge 2 is a Super Mario fan game set in a parallel universe where Bowser and company are the good guys, while Mario and his pals are pure evil. After defeating Mario and his cohorts in the first game, Koopa sets off to a distant land where a kidnapped Bowser is being held by a mysterious robed figure. Play as Koopa, Goomba, or Shy Guy on your quest to free Bowser and restore justice to the Koopa Kingdom.
Mario wants to buy bread, but there isn't any! And now he's on a rampage against the bread thieves!!!
Did you play the original Syobon Action, and thought it was fun?... No? Well, this is a very SPECIAL edition of the game! No more trolling, 13 new levels, and many, many new features! A completely new almost troll-free platformer based on the original Super Mario Bros and Syobon Action.
Super Mario 4 Players (SM4J) is an unofficial fan-game that contains several game modes, including various single-player campaigns, multiplayer modes for up to 4 players at a time, and the ability to create/play levels or worlds created by users, as well as customize the game's appearance using textures created by the community.
A fangame based around the scrapped concepts of Sonic 1, combining some elements from the early prototypes.
Sonic Color Cursed is a 2D speed based platformer, inspired by the Genesis classics with a 1-bit artstyle! Dr. Eggman is up to his antics again and this time he’s stolen all the color from the planet! Sonic and friends will have to put an end to Eggman’s plans with flying colors! Or else the world will forever cease to have color! There are RGB scales for you to adjust to have your own shade of the game. You can also enable colored outlines for important objects!