Sonic 3: D.A. Garden Edition is a hack based on Sonic 3 & Knuckles By D.A. GardenThe project that has been in development since July 2009.the initial idea was to create a ROM hack of Sonic 3 & Knuckles that would provide the player with brand new level layouts from start to finish. In total, 13 Zones of new layouts providing 23 unique acts of game play for 3 characters, and 14 new Special Stages for you to conquer.CreditsMarkeyJester - S3K Layout Padder, SSRG Splash Screen, Invincibility Music Port and Bug FixesUtopiaUK - Testing and Bug FixesMainMemory - Testing and Bug Fixesdjohe - Testing and Bug FixesFlamewing - Bug FixesVarion Icaria - Bug Fixes

Sonic And The Mystic Gems (previously known as Sonic 1 Harder Levels) is a hack made by Eduardo Knuckles and his team Harder Project of Sonic the Hedgehog on the Sega Mega Drive. It began in 2005 with the simple purpose of being a generic Sonic 1 for Sega Genesis with increase difficulty and revamped versions of the original levels. But now, it's going to present a completely new gaming experience with a new style of level layouts full of paths everywhere among new enemies, new objects, new character abilities, new menus, completely different styles of the Sonic 1 special stages and much more!Credits and Special ThanksMistergambit for his Spring Yard Zone and Labyrinth Zone level art used in the game.Tweaker for his information regarding music importing, bug fixes and the speedcap removal.HPZMan for the new sound driver instruments and the dynamic tile-set system.Selbi for some new exclusive ASM things and improvements.Master3k for sending and fixing some music.nineko for creating the xm3smps tool which was essential for the creation of some songs. Special credits to him for the different songs per act system used.SCAA for their art.Puto for his tutorial to add Spin Dash.FraGag for his tutorial to fix the spike bug.SonicVaan for beta testing.HCKTROX for the lead programming and bug fixing.GenesisFan64 for the save screen menu, for some fixes related to the fade-out and others.MarkeyJester for lots of important code and a whole load of others.Irixion for beta testing.PsychoSk8r for his the dynamic palettes tutorial.Esrael for fixing essential things in the new sound driver.Prilix Bõkun for bug searching and beta-testingEstlib for various art stuff related to levels and for additional help with creation of gimmicks and objectsDJ. Joker27 for his very big importance in specific level and misc musicMighty Arnold for additional support with beta-testing and level layout designKenny0989 for additional support in the music department Special credits to Harder Project's Team by all the useful exclusively things used in the project.

Sonic Gaiden is a 2003 fan-made hack of the original Sonic the Hedgehog game for the Sega Genesis/Mega Drive.The hack is a co-operative effort between two noteworthy hackers in the community, Yuski the Dog and Esrael Neto. Esrael is most famous for his work on Sonic 2 Delta, a hack of the Sonic 2 Beta ROM which re-coded all the incomplete elements and restored deleted levels. Yuski had created a previous hack in 2000 called Mighty the Armadillo which was a sprite and palette hack of the U.S. Sonic 1 ROM. Sonic Gaiden was born when Esrael e-mailed Yuski a Sonic 1 ROM-hack with both Sonic and Mighty playable.

Hellfire Saga is Sonic 3 & Knuckles hack made with great inspiration from Castlevania and Ghosts n Goblins series by Narcologer.Main Credits:Narcologer - Hack and idea.Programming:Narcologer - Bosses, badniks, HP system, cutscenes, text screens (except very first one), dialogs.TheBlad768 - Source code(modified disassembly of S3K - S.C.E), title screen with disclaimer text screen, credits screen, ending cutscene, bug fix, blood and meat.Sprites:NarcologerModgenTSRMusic ports:TheBlad768Sounds:NarcologerTheBlad768Level design:NarcologerBeta testing:TheBlad768FireratMr. CatFoxConEdStoryline:NarcologerExternal Credits:ValleyBell - midi driver, mid2smps, vgm2mid, wtmd2mid, smpsconv.Flamewing - smps2asm.Clownacy - Sonic 2 Clone Driver v2 (v2.7+ prototype).

Sonic Legacy is a hack of Sonic the Hedgehog 2 for the Sega Genesis/Mega Drive that has been worked on since October of 2016 for the 2017 Sonic Hacking Contest. It isn't a radical departure from the original game as it is my first hack and I haven't yet learned M68K ASM.CREDITS * GAMMA V - Most custom art, most custom music, all level layouts * CRASH - Midnight Metro Act 2 and Special Stage music * JUBBALUB - Lava Canyon Act 2 music * SELBI - Sonic 2 Text Code Editor * CLOWNACY - Sonic 2 Clone Driver V2 * SCHG/SONIC RETRO - Code for various bugfix hacks * SKYLIGHTS/SPRITERS RESOURCE - S3&K Angel Island Act 1 sprite sheet (used for the top part of Marsh Palace's background) * DJOHE Background deformation removal (necessary for the custom background in Marsh Palace), VCZ/SCZ 2P custom art fixes * VALLEY BELL - MIDI2SMPS * MARIOMANIAC444 - Boss music (original composer) * LIL-G - Per-Act music changing code

Sonic the Hedgehog (ソニック・ザ・ヘッジホッグ Sonikku za Hejjihoggu?) is a platform video game developed by Sonic Team and published by Sega for the Sega Mega Drive/Genesis. First released in North America, Europe, and Australia on June 23, 1991, the game is the first installment in the Sonic the Hedgehog series, chronicling the adventures of the titular character in his quest to defeat the series' antagonist Dr. Robotnik. The game's story focuses on Sonic's efforts to stop Dr. Robotnik's plans for world domination, release the animals Dr. Robotnik has trapped, and collect six magical emeralds known as the Chaos Emeralds.Development of Sonic the Hedgehog began in 1990, when Sega ordered its AM8 development team to develop a game featuring a mascot for the company. After a hedgehog was decided on as the main character, the development group was renamed Sonic Team.Sonic the Hedgehog received positive reviews from critics, who praised the game's visuals and its sense of speed. It was commercially successful, increasing the popularity of the Mega Drive/Genesis and establishing Sonic the Hedgehog as the company's mascot. Its success led to the development of subsequent games in the Sonic the Hedgehog series, as well as the creation of a media franchise of spin-off products featuring the character.