Sonic 3 Ultimate is a hack of Sonic 3 & Knuckles that aims to give an upgrade to the game. Graphics have been updated and multiple bugs have been fixed.
Sonic and the Duel of Fates is a fan-made project that blends high-speed Sonic the Hedgehog platforming with the cinematic, epic atmosphere of Star Wars.
This mod returns the scrapped levels of the Sonic CD: Dubious Depths, Baneful Badland (reimagined Desert Dazzle) and Final Fever. Levels become part of the main game, not additional levels. They are made according to existing information and concepts about them, but at the same time, the mod does not try to authentically and accurately recreate the levels, but is a free interpretation of the author. All level's assets and objects are custom. The mod has a little customization of names and level music; some of the music was written specifically for the levels, while others were borrowed from other authors, most of whom are part of the team.
Sonic 1 Co-op is a ROM hack of the original 1991 game for the Sega Genesis. This modification completely overhauls the base engine to support local, split-screen cooperative gameplay, allowing a second player to join as either Tails or a duplicate Sonic.
After refusing to help someone in need, you’re cursed by a mischievous fairy to see the world only through other people’s eyes. Explore a realm of floating islands — not from your own view, but through the wandering gazes of strangers in this second-person platformer.
Platform through a world of floating islands and caves, with your camera perspective being only the eyes of those nearby. People are scattered across the land, watching from afar—watch them walk, trip, sneeze, or blink, or take matters into your own hands and toss them around. And for an extra challenge, activate hard mode and face it all with no checkpoints.
Explore hand-built levels packed with puzzles and perils. Leap platforms, blast enemies with magic flames, and discover secrets. Each realm brings fresh challenges. Green swamps ooze with toxic sludge. Orange factories rumble with crushers and blades. Blue depths demand swimming through hidden caves. Pink alien zones twist with bizarre life.
The world has been overrun by civilization. With the expansion of mankind, the amount of preserved ecosystems is dwindling. It's up to the gomies to make the world beautiful again!
Super Mario Bros was only legitimately obtainable in Doubutsu no Mori+, where a Nintendo GameCube Memory Card with the item data on it was sent to 30 winners of a sweepstakes in Weekly Famitsu Vol. 678 in December 2001. The item is otherwise only obtainable with a secret code that is specific to the player's name and their town's name; however, since Nintendo never offered a code generator which generated a Super Mario Bros code, it is only possible to obtain through the use of a third-party code generator.