Sonic 1 NAC Tiny Version (Tiny as in short version) is a hack based on Sonic 1 made by Campbellsonic is a simple but advanced sonic 1 hack that has different events and concepts with in each level. Therefore making each level different and unique to the standard level edits that you find in must hacks, especially some of mine.Hack Story line:One day sonic decided to take a break from his friends and the stress that he has been going through, and went back to south island. however when sonic had arrived at south island he noticed something was different, everything seem to have changed colour and seemed to be a lot darker then it use to be, And so he decided to explore. After spending 10 minutes exploring the changes; sonic noticed the that the badniks that he destroyed before had reappeared in green hill zone. Then sonic realized that robotnik was back to no good once again and goes to save south island once again. Level Information:You may notice that all of the main levels have a wall that seems to be unbreakable at the end of the level, this is because your required to find and hit an "S" monitor in order for that wall to become breakable and before your able to finish the level. Act 2 of the main green hill zone will start off normal but then you will given a platforming challenge. Act 3 of the main green hill zone is a auto running level inspired by sunset park act 3 from sonic triple trouble, where you have no control over sonic's speed or direction he is running in, all you can do is make sonic jump.Credits:Beta Tester: Sarah Mckinney (KosmoF)

Sonic 1: Reverse Curse is a hack based on Sonic 1 made by CampbellsonicStory:Sonic the Hedgehog has been cursed! Now, when he collects rings, his rings counter counts DOWN instead of up! And if he collects a ring when he has a counter of 0, it's lights out. Sonic 1 never seemed so... Intimidating.CreditsMain programming, modifications, ideas, and general everything except for stuff listed belowCampbellsonicMusicvladikcomper - Ported music used in GHZ3, MZ2, SYZ3, LZ2, LZ3, SLZ3, and SBZ2 (I got them from S1 Hacking Studio; and no, I didn't use that to make this hack, just the music)nineko - SLZ2 music (his port of Sky High Zone from Sonic 2 8-bit)ValleyBell - Created S3K to S1 SMPS Converter, which I used to port the music used in GHZ2, MZ3, SYZ2, SBZ1, all Boss acts, and Speed Shoes.Tutorials usedAdd Spin Dash - By Lightning, Puto, shobiz, and MercuryPlay Different Songs on Different Acts - By ninekoPort the REV01 Background Effects - By jman2050How to Add one more Act in Sonic 1 - By Eduardo KnucklesChange Spike behavior in Sonic 1 - By FraGagFix the Walk-Jump Bug in Sonic 1 - By Cinossu and MercuryProbably some others I forgot, so if you see anything that you think was from a tutorial, tell me.Utilities usedSonED2 - By StealthSonMapEd - By XenowhirlSpecial thanksGreen Snake, flamewing, MainMemory, and Clownacy for pointing me in the right direction on porting Sonic's S3 spritesI had no idea what a DMA queue was, silly me

Sonic 2 Delta is a groundbreaking series of ROM hacks by famed Sonic scene member Esrael Neto, which restores several deleted levels and prototype elements toSonic the Hedgehog 2 for the Sega Mega Drive / Genesis. Various features of Sonic 2 Delta, common across the series despite the existence of several versions/branches of the hack, include the use of art and music from the betas and Sonic the Hedgehog and re-implementation of badniks that had been removed from the final game. The level order of Sonic 2 Delta is also similar to the original intended order, rather than that used in the final version.The main version of this hack is entitled Sonic 2 Delta and was based upon the Simon Wai prototype, before version 0.24 transferred the codebase to 'revision 2' of Sonic 2 from Sonic Compilation. More information on the various lineages and their history is detailed in the section "Other versions" below.A hack similar in concept, called Sonic 2 Long Version, has been released by another hacker, Sonic Hachelle-Bee.

the hack has only complicated bosses.It's not finished is a beta version. In the future, this version will be much better.And much more.This hack made by TheBlad

Sonic 3D Blast (Japanese: ソニック３Ｄブラスト, Hepburn: Sonikku Surīdī Burasuto), also known as Sonic 3D: Flickies' Island (ソニック３Ｄ フリッキーアイランド, Sonikku Surīdī Furikkī Airando), is a 1996 platform video game developed by Traveller's Tales and Sonic Team, and published by Sega for the Genesis, Saturn, and Windows. Part of the Sonic the Hedgehog series, the game abandons previous Sonic games' side-scrolling style in favor of isometric gameplay, making use of some pre-rendered 3D models converted into sprites. The game features creatures known as Flickies, which first appeared in the 1984 arcade game Flicky. Controlling only Sonic himself, the player's goal is to collect Flickies and carry them to safety, periodically sparring with the series antagonist Dr. Robotnik, who is imprisoning them within robots. The game was developed alongside another Sonic game for the Sega Saturn, known as Sonic X-treme, which would end up cancelled. While 3D Blast was initially created for the Genesis, which had already been discontinued, Sega also commissioned a port for the Saturn. The Saturn version of 3D Blast was developed as a backup plan in case X-treme could not be released. Both versions of Sonic 3D Blast received mixed reviews from critics, who generally disliked its isometric gameplay but praised its visuals and music. The game was later ported in 1997 to Microsoft Windows computers and released on numerous Sonic themed compilations and digital distribution platforms.

Sonic Advance (ソニックアドバンス, Sonikku Adobansu) is a 2001 platform game in the Sonic the Hedgehog series, developed by Dimps and Sonic Team and published in Japan by Sega for the Game Boy Advance. It was later published by THQ in North America and by Infogrames in PAL regions. It was released in Japan on December 20, 2001, in North America on February 3, 2002 and finally in PAL regions on March 8, 2002. It is one of the first Sonic games to be released on a Nintendo console. Sonic Advance was also ported to the Nokia N-Gage on October 7, 2003 under the title SonicN. A version for Android devices was released in Japan on November 25, 2011. The game was ported again on the Wii U Virtual Console in February 18, 2015 in Japan.

Sonic Advance 2 (ソニックアドバンス２, Sonikku Adobansu Tsū) is a 2002 handheld platform video game developed by Dimps and Sonic Team, and published in Japan by Sega, in North America by THQ and in Europe by Infogrames for the Game Boy Advance. The game was released in Japan on December 19, 2002, in North America on March 9, 2003, and in PAL Regions on March 28, 2003. It is the sequel to Sonic Advance, and is based on a modified version of its game engine. Gameplay consists of the player defeating "zones" as one of five unlockable characters, each with their own unique attributes. After each zone is completed, the player faces Doctor Eggman, the story's antagonist, in a boss battle.

Sonic Advance 3 (ソニックアドバンス3, Sonikku Adobansu Surī) is a platform video game for the Game Boy Advance developed by Dimps and Sonic Team and published by Sega in Japan and THQ in North America and Europe. It was released on June 7, 2004 in North America, June 15 in Europe, and June 17 in Japan. It is part of the Sonic the Hedgehog series; and the chronological sequel to Sonic Battle. The game stars the characters Sonic, Tails, Amy, Knuckles, and Cream as they seek to keep Doctor Eggman and his robot assistant Gemerl (ジーメル, Jīmeru) from building empires on each of seven chunks Eggman has divided the Earth into.The game is a fast-paced 2D platformer that takes place across seven zones, each divided into three acts and a boss fight. It allows one or two players to control any two of the five characters; each one has different abilities that allow players varying access to parts of levels. While the graphics are mainly 2D, the game features some 3D rotation effects. It sold quickly upon release and received positive reviews from critics, who praised its gameplay and aesthetics, though they were more divided on the team-up dynamic.

Sonic Boom is a total modification of Sonic 2, created by snkenjoi and iojnekns, along with a wide array of talented contributors. As of the Seventh Annual Hacking Contest, this collective is referred to as SÆGA.

Sonic the Hedgehog hack made by By Narcologer fully remade zones: Paradise Coast (GHZ), Border Fort (MZ), Dangerous Pit (LZ) and Robotropolis (SYZ) with new music, layouts, graphics and some new chunks. characters: Sonic, Mighty and Metal Sonic. Sonic can perform spin dash and peel out, Mighty can perform jump dash and double jump, Metal Sonic can only to spin dash but also he can't drown.Because 3 characters (and there will be more in future releases!) are too many for title screen I made a simple character select menu.A lot of new sprites.New Sega logo screen.And lots more!Credits:Programming: Narcologer, Vladikcomper, Sonic2010, EsraelNew level art, new chunks and layouts: NarcologerSprites: Narcologer, The Spriters Resource, SCAA, Lone DevilMusic: Ivan YO, STD, Nineko

Sonic Classic Heroes is a ROM hack for the Sega Mega Drive / Genesis that is the result of a collaboration between flamewing and ColinC10, combining their respective hacks Sonic 2 Heroes and Sonic 1 and 2. It therefore is a single ROM that offers the entire campaigns of Sonic the Hedgehog and Sonic the Hedgehog 2, either alone or together; and enables the player to play as many characters such as Sonic, Tails, and Knuckles. The hack is named due to the ability to control a team of characters, which is reminiscent of the more recent 3D game Sonic Heroes.The hack is built on Sonic 2's engine, which has been enhanced by both flamewing and ColinC10 to have new features. These include: multiple gameplay elements from Sonic 3 & Knuckles, such as element shields and character-specific abilities; the ability to save progress, scores, etc. to SRAM (something rarely implemented in Sonic 2, with the other notable example being Esrael's Sonic 2 Delta); various bug-fixes and improvements to the mechanics of the original games; and many more features, both implemented and planned.

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

Mobius Evolution is a heavy modification of Sonic the Hedgehog for the Sega Mega Drive created by Abyssal Leopard with the help of fellow members. The aim of this hack was initially to be a simple level layout hack, but it eventually acquired new features, such as innovative gimmicks, boss battles and other things the player might discover in gameplay.

Sonic the Hedgehog Spinball, or Sonic Spinball (ソニック・スピンボール Sonikku Supinbōru?), is a pinball video game in the Sonic the Hedgehog series. It was originally released for the Sega Mega Drive/Genesis in 1993, and later ported to the Sega Game Gear and Sega Master System in 1995.The term "Spinball" is a portmanteau on pinball and "spin dash", a move Sonic performs. It, along with Dr. Robotnik's Mean Bean Machine were the only two Sonic games released to use characters and elements from the Adventures of Sonic the Hedgehog and Sonic the Hedgehog cartoons.

Sonic the Hedgehog refers to the Sonic the Hedgehog video game series released by Sega, and starring its eponymous mascot, the video game character Sonic the Hedgehog. The video game series is the primary product in a multimedia franchise, including products in a wide range of media.

Sonic The Hedgehog: The Lost Worlds is a hack of Sonic the Hedgehog 2 by ExecByte. This hack features all of the zones that were cut from Sonic 2 during development. Some zones have been ported from the Sonic 2 Simon Wai prototype and then finished up, and some have been created based on magazine pictures and information from interviews with people who worked on Sonic 2.

Sonic the Hedgehog 2 (Japanese: ソニック・ザ・ヘッジホッグ2, Hepburn: Sonikku za Hejjihoggu Tsū) is a platform video game developed by Sonic Team and Sega Technical Institute, and published by Sega for the Sega Mega Drive/Genesis console. It was released in Japan on November 21, 1992 and in North American and European markets on November 24 the same year. The game is an installment in the Sonic the Hedgehog series, and focuses on the protagonist Sonic the Hedgehog and his friend, a fox named Miles "Tails" Prower, who must stop the series antagonist Dr. Ivo Robotnik from stealing the Chaos Emeralds to power his Death Egg space station.Development of the game began in November 1991, two months later than originally intended, because Sega of America initially felt that it was too soon for a sequel. Both the American and Japanese Sonic Team staff contributed to developing the game; art director Tim Skelly designed the appearance of the game's new 3D Special Stages, which were based on an earlier tech demo created by Yuji Naka. The staff increased the speed of Sonic the Hedgehog 2 in comparison to its predecessor. As with the first installment, the soundtrack was composed by Masato Nakamura.The game was a critical and commercial success upon release, with critics praising it for building upon the original Sonic the Hedgehog game. The game has sold over 6 million copies, making it the second-best-selling game on the console, behind only its predecessor in the Sonic series. Since its initial release, the game has been released in several compilations and download releases for various platforms, which were also generally positively received.

Sonic the Hedgehog 3 & Knuckles (or simply Sonic 3 & Knuckles or Sonic 3 Complete Version) is a platform video game which is the result of locking-on Sonic & Knuckles with Sonic the Hedgehog 3 using the former catridge's unique "lock-on" technology. It is essentially a large combined game of its two lock-on components and contains all Zones from the said games and also contains special features unique to this game. This would have been the original Sonic the Hedgehog 3 the developers intended but time constraints by Sega resulted in the game being split into two.