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Take control of a green robot and help Dr. Kabochanomizu find The Source before the Rokudou Corporation does.
A 2D platformer for the Uzebox.
Blob Wars : Attrition is a mission and objective-based 2D platform action arcade game.
Marble Marcher is entirely ray-marched (similar to ray-tracing) in real time and is played on the surface of evolving fractals. The goal is to get your marble to the goal as quickly as possible. There are 24 unique levels to master. This game is the result of a fractal physics engine developed by CodeParade that allows fast collisions with fractals and other procedurally rendered objects. As far as I'm aware, it is the first game to ever use this technique.
An unofficial port of Donkey Kong for the Uzebox.
A platformer where you play as Alex The Allegator, running through the jungle to save his girlfriend.
Super Mario Bros. X2 is a mod and expansion of Redigit's SMBX fangame in which players can create their own Super Mario levels and episodes.
Open Surge is a fun 2D retro platformer inspired by Sonic games and a game creation system that lets you unleash your creativity! Open Surge is two projects in one: a game and a game creation system (game engine). It is released as free and open source software.
Secret Maryo Chronicles is a free and open-source two-dimensional platform computer game that began in 2003.
Sonic Time Twisted is an open-source Classic Sonic style fan-made game, headed by Overbound. The game tries to improve upon the best features from Sonic the Hedgehog CD and the other Genesis/Mega Drive games. These features including time travel, elemental shields, and 3D special stages. The player controls Sonic and co. and they play like they do in the Genesis titles. Like in Sonic the Hedgehog CD, the player must use time poles (now adjusted to be instant) to travel through two different time zones, Past and Future. In the Past, Sonic must find the Special Stages and collect the Time Stones, while in the Future, Sonic must also find the Special Stages, however, these have the Chaos Emeralds. Beat all 14 Special Stages in each time zone (7 each) and the player will achieve the True Ending. Besides that, the player must traverse through 8 zones, most with 2 acts each, reach the Goal Post at the end, as well as encounter a boss at the end of the stage be it Metal Sonic or one of many loyal Super Badniks.