A hack based on Sonic 2 made by Pacguy.The sequel to Robotnik Returns, Robotnik Returns 2 (you can call it RR2 for short). Vastly improved from the previous demo, and mostly hidden from the public, this hack has been in the works for quite some time...Credits: Music: JoenickROS for the music ports, KHinsider for the midis they were based on, and Flamewing for the S3, S&K, and S3D blast ports I stuffed in here and there. And last but not least, Clownacy, for creating the Clone Driver V2, without which this hack would probably have default or horrendously ported music :V Code: MarkeyJester and MainMemory for various fixes and guides, RedHotSonic for his many cool guides, and Selbi, whos' guides offered me realms of understanding, and made things like the custom character moves possible for me to do :3

Sally Acorn in Sonic the Hedgehog (aka Sally in Sonic 1) is a fan-made ROM of the game Sonic the Hedgehog for the Sega Mega Drive/Genesis, with Princess Sally Acorn as a playable character in place of Sonic the Hedgehog.The game was modified by Sonic Retro member E-122-Psi, with additional programming and coding by other members including Snkenjoi,MarkeyJester, Aquaslash,Selbi and Hayate.

Sally Acorn in Sonic the Hedgehog 2 (aka Sally in Sonic 2) is a fan-made ROM of the game Sonic the Hedgehog 2 for the Sega Mega Drive/Genesis, with Princess Sally Acorn as a playable character in place of Sonic the HedgehogThe game was modified by Sonic Retro member E-122-Psi, with additional programming and coding by other members including MainMemory, Qiuu and Snkenjoi.

Shinobi III: Return of the Ninja Master, released in Japan as The Super Shinobi II (ザ・スーパー忍II?), is an action game developed and published by Sega for theMega Drive/Genesis console that was released in 1993. It is the direct sequel to the previous The Revenge of Shinobi. The game was originally intended to be released in 1992, and to be very different from the final version of the game in terms of levels and storyline.This hack is for beginners, It gives the player 99 lives to be able to finish the game.

Socket the Hedgeduck is an in-progress, unofficial port of levels and assets (art, custom objects, and more) from the Sonic clone titled "Socket/Time Dominator" to the Sonic 1 engine. (The title is a portmanteau on "Socket" and "Hedgehog", since the hack contains assets from Socket shoved into the Sonic 1 engine). It contains various standard platforming zones, bonus zones, and acts from the High Speed Zone as special stages, as well as various other advanced engine features and new content (such as an expanded music playlist with custom SMPS tunes, warp doors, a bonus and special stage zone feature, and much more). This is a v0.3 demo created specifically for the SHC'16!CREDITS:Tutorials•MarkeyJester: Old SSRG Logo•Mercury: Zone Agnostic objects•FraGag: Sonic 1 ROM Chunks guide•VladikComper: MegaPCM, PCM2DPCM Converter•Tornado: Sonic 1 Water Guide (for AZ, BZLa)•Other peopleHelp•ProjectFM, Clownacy, Nineko, MainMemory: Help with expanding ROM Chunks to $FF/Basic Q&A•LuigiXHero: Hack help and bugfixes•Firerat: Optimizations on the game's object handler and other bugfixes•Nineko: Rainbow Road song (from his publicly released SoniNeko SMPS pack, for Bonus Zone Fence FG2)•"Jakob": IRL friend bug testing on real hardware•AbysmalLeopard: Enlarged GHZ Ball and Level Select BG artToolsEditors/Misc•Techokami: Socketripper phps script and level rips at spriters-resource (this hack wouldn't exist without it!)•GenesisFan64: Socket disasm (used for directly ripping palettes and analysis)•MainMemory: SonLVL and S2NA supportArt•Clownancy (et. al.): Capt. PlanED•KanedaFR: Gens KMod (for ripping art and palettes)•Selbi: Sonic 1 Text Editor, Selbi's Parallax Editor•ComputerNerd/Sonic16: RetroGraphicsToolkit•Hivebrain: PCXPal v4.0•Xenowhirl: SonMapEDAudio•Puto, Nineko: XM3SMPS and XM4SMPS•ValleyBell: VGM2MID, MID2SMPS, SMPSPlay, PCM2DPCM Converter, GRC2MID•Apollolux: VGM2PRE•Shiru: VGM Music Maker

Sonic - Hyper X is a 2004 hack of Sonic the Hedgehog created by Skaarg. It was one of the first Sonic hacks that had all of its music changed. In addition, it also featured modified palettes and layouts. Skaarg had stated that he was going to continue to expand upon his hack, but it seems highly unlikely at this point.

Sonic: The Lost Land 2 is a hack of Sonic the Hedgehog 2 for the Sega Mega Drive/Genesis by Shadow Fire. The game is comprised of 11 levels, each filled with dangers you must overcome in order to stop the plans of the maniacal Dr. Eggman. Only palettes, some slight layout changes and various other small modifications have been made for the time being, since this hack is on hold for Sonic - The Lost Land.

A sonic hack based on Sonic 1 made by Ashuro Sonic & Ashuro was released during the Sonic Hacking Contest 2016, I presented the first version of this project: The 3.0 (which I later updated to Sonic Stuff Research Group as 3.1).I received a lot of good feedback and decided to continue this project, which seemed unfinished. I decided to recast 60% of the game, improve a lot of things, I fixed so many bugs, technical problems, unfinished plans.Story :After losing once again against Sonic, Tails and Knuckles on Angel Island, Dr. Eggman in a desperate attempt will use the residual energy of the Chaos Emeralds and damage the spatio-temporal balance of their dimension.Sonic's world will find itself on the same vibratory plane as its parallel universe, that of Ashuro the badger. But the universes are collapsing on themselves and Dr. Eggman risks destroying all the worlds they harbour.To prevent the destruction of the world, Sonic and Ashuro will join their forces to restore the order and return to their respective worlds.Credits:Author : AfterLife (Ashuro/Drakughost, Frenzy-Frenzless)Developers : AshuroBeta-testing : Frenzy-FrenzlessSpecial Thanks : FireRat, ProjectFM, FraGag, Ayla, Vladikcomper, MarkeyJester, Natsumi, Genesisdoes, Clownacy, Lazlopsylus, A.S.H., RedHotSonic, Valleybell, MainMemory, and all the Sonic Stuff Research Group's members, Sonic Retro...

Team Overload presents, Sonic 1 - Warped World! This hack has undergone a quite a lot of changes since last year, including brand new level layouts, a lot of new music, and some other really cool features that you'll see in game! This year's entry only has 3 playable levels so far, but after completing the demo, you will gain access to the level select, where you can see what is in store for future releases!Story:After the events of Sonic 3 and Knuckles, Sonic lands back on Mobius. But because of his extended use of Super Sonic, he has lost his abilities. The Tornado lands on an unknown area so Sonic goes and explores. He comes across a whole lot of badniks and thinks straight away that Eggman had crashed there. Eggman, who barely made it, set up shop in an abandoned factory and built "Robotic Empire". Sonic, on the other side of Chaos Island, needs to make it through the six zones to destroy the Chaos Extraction Engine in Robotic Empire, and regain some of his lost abilities!Credits:A-S-H - Project leader, main music, main art, level layouts for POZ1, CSZ1, HTZ1FireRat - Sound TestKOOL-ZPOT - Super Peel-OutCaveQuest - POZ3 level layoutMopeDude - HTZ2 level layoutLordXernom - Original Level Select musicEduardo Knux - Labyrinth (8-Bit) music portTeam Overload - Beta-testing, help, suggestions and supportSSRG and Sonic Retro - Various guides and general help