Shadow Dancer (シャドー・ダンサー?) is a side-scrolling action game produced by Sega originally released as an arcade game in 1989. It is the second arcade game in the Shinobi series, following the original Shinobi itself. The game was developed on the Sega System 18 motherboard hardware. Home versions were released for the Master System and various home computers. A remake was also developed for the Mega Drive/Genesis titled Shadow Dancer: The Secret of Shinobi.

Shadow of the Beast is a side-scrolling platform computer game produced by Reflections (Later known as Reflections Interactive) and published by Psygnosis in 1989. The original version was released for the Commodore Amiga but the game has been ported to many other systems. The original Amiga release cost £35, an unheard of price for a video game in that era, but it did include a T-shirt in the box bearing a print of the box's artwork. Psygnosis had published numerous side scrollers with high quality graphics prior to the release of Shadow of the Beast (most notably Obliterator). Shadow of the Beast, however, was considered revolutionary because its graphics, with many more colours on screen and up to twelve levels of parallax scrolling backdrops, were of a level rarely if ever seen before in action games. It was also notable for its atmospheric score composed by David Whittaker that used high-quality instrument samples. Shadow of the Beast will be remade on the PlayStation 4.

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.

688 Attack Sub is a submarine simulator game designed by John W. Ratcliff & Paul Grace, published in 1989 for DOS systems and 1990 for Amiga computers by Electronic Arts. A Sega Mega Drive version was also published. The player takes command of a US Los Angeles-class or Soviet Alfa class nuclear powered attack submarine and plays 10 missions ranging from into either Cold War scenarios or combat missions in a hypothetical global conflict. As modeled in the game, the American submarine has more sophisticated electronics and more weapons. The Soviet boat has fewer weapons but higher sustained speeds. 688 Attack Sub is known as an early classic of the genre. John W. Ratcliff followed it up by SSN-21 Seawolf later. This was one of the earliest games that allowed two players to play against each other over a modem (or null modem cable).

Sonic 1 - Back to South Island is a Sonic 1 hack made by HyperSonic16.This hack includes new audio, new stage/special stage layouts, new sprites, SPINDASH!!!!!(of course a spindash XD), New level art, and a bunch of badniks(Thanks Robuttnik!) You all are probably expecting a story, so here it is, nice and sweet:Story:Its the Christmas season, and everyone is doing their thing. Tails and knuckles go off to celebrate Christmas on Angel Island. While this happens, Sonic decides to go back to South Island (hence the name of the hack), to celebrate and check up on the flickys. Eggman, strangely had a similar idea, but he plans to robotize the flickys, and rebuild his base. When Sonic arrives, he finds a bunch of badniks, and he immediately knows that Eggman is there. So sonic, being the hero he is, he travels out to stop eggmans plans.

Sonic 1 Beta Remake is a Sonic 1 hack created by Mistergambit, first released on September 14th, 2006. This hack has all of the Sonic 1 levels redesigned to look like their prototype counterparts, as seen in various magazine screen shots. This hack also has new objects, such as a functioning Splats, the checkered ball that was scrapped from GHZ, and more. To make it seem more like a genuine prototype, some levels are made to look unfinished.

Sonic the Hedgehog Brother Trouble is a hack of Sonic the Hedgehog for the Sega Mega Drive featuring Sonic the Hedgehog and Manic the Hedgehog made by MarkeyJester. The hack is notable for its overworld system, new level layouts and graphics and custom boss.

Sonic 1 The Blue Blur is a hack of Sonic the Hedgehog for the Sega Mega Drive/Genesis, created by Scwha. It gives each Zone totally new palettes and layouts, with the latter designed to be more difficult than those of the original game.