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 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.

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.

OutNumbered! is an educational computer game published by The Learning Company in 1990 for both Windows and Macintosh PCs. It is aimed at children ages seven to fourteen and is designed to teach children mathematical computation and problem solving skills.

Teenage Mutant Ninja Turtles: Turtles in Time, released as Teenage Mutant Hero Turtles: Turtles in Time in Europe, is an arcade video game produced by Konami. A sequel to the original Teenage Mutant Ninja Turtles (TMNT) arcade game, it is a scrolling beat 'em up type game based mainly on the 1987 TMNT animated series. Originally an arcade game, Turtles in Time was ported to the Super Nintendo Entertainment System in 1992. It was retitled to serve as a sequel to Teenage Mutant Ninja Turtles III: The Manhattan Project. That same year, a game that borrowed many elements, Teenage Mutant Ninja Turtles: The Hyperstone Heist was released for the Mega Drive/Sega Genesis. Years later, the arcade version of Turtles in Time was revisited on newer consoles. A slightly altered version of the arcade game was included as an unlockable bonus in the 2005 game Teenage Mutant Ninja Turtles 3: Mutant Nightmare. On 5 August 2009, Ubisoft released a 3D remake of the game, Teenage Mutant Ninja Turtles: Turtles in Time Re-Shelled, for Xbox Live Arcade. The remake was released onto PlayStation Network on September 10, 2009.