

Kid Chameleon is a 1992 platform game released for the Sega Genesis/Mega Drive. The premise of the game is that the main character, Casey, can use masks to change into different characters in order to use different abilities. It was later released in Japan as Chameleon Kid. The game is also a part of the Sega Genesis Collection for the PlayStation 2 and PlayStation Portable. It was released for the Virtual Console in Japan on May 22, 2007; North America on May 28, 2007; and Europe on June 1, 2007. It was also released in addition to a series of other Sega games, including Shining Force and Comix Zone, in Sega Smash Pack 2. The game has also appeared in Sonic's Ultimate Genesis Collection for Xbox 360 and PlayStation 3.
The player, as Kid Chameleon, progresses through a series of levels, containing an array of deadly enemies and obstacles. Most levels contain a flag, which is the primary goal of each level, from which the player progresses to the next level. However, a number of teleporters throughout the game can warp the player not only to different places in the same level, but also to different levels, and sometimes to an entirely different path through the game. At the end of the game, Kid fights and defeats the final boss, Heady Metal. Kid Chameleon contains 103 levels, of which only about half are on the "main path" (traversing levels only by flags), and also counts 32 smaller unnamed levels, simply called "Elsewhere". Despite the game's considerable length, there was no password system or other method of saving the game (although re-releases in compilations and Virtual Console include their own save features). There are several bonuses that can be earned at the end of certain levels (in which the flag is touched), including beating a time limit, not getting hit and not collecting any prizes. As Kid Chameleon moves through the game's levels, he gains access to masks that transform him into different characters. Each character has different special abilities and varying amounts of hit points. Collecting a mask that the player is already wearing will restore its health. The sheer amount of variety in gameplay due to the various characters is part of what gave Kid Chameleon such an addictive style; few levels repeated the same structure and they usually had specific strategies and characters to be beaten. In addition to the offensive abilities of each form, the Kid could also defeat enemies by jumping on them, although he may take damage from some enemies by doing so. Each form can also make use of Diamond Powers which require diamonds collected in the game to use, accessed by pressing A + Start. Players lose a life if Kid Chameleon loses all his hit points in human form, is crushed, falls into bottomless pits or lava or touches the drill wall which appears in certain levels, or if time runs out. Extra lives and continues can be found in the game, with additional lives awarded for every 50,000 points.

Platform / Adventure / Action / Science fiction
Ristar is a platform game developed and published by Sega for the Sega Genesis in 1995. A Sega Game Gear game, of the same name and genre, Ristar, was also released, which shared similar themes while possessing different level design and gameplay mechanics. The game stars an anthropomorphic cartoon star who uses his hands and long, stretchable arms to both move and combat enemies. Reception for the game has been generally positive, but the game's initial release was overshadowed due to the imminent ending of the Genesis's lifecycle and the succession of the Sega Saturn and other fifth generation video game consoles. While never receiving any sequels, Sega has re-released the game a number of times digitally and on Sega-themed compilations, and has occasionally given Ristar himself cameos in other Sega properties.

Shooter / Platform / Arcade / Action / Science fiction
The Gunstar family are the protectors of the planet Gunstar 9. After many years of peace, vicious dictator Colonel Red kidnapped the Gunstar twins’ older brother and used mind control to make him his slave.

Adventure / Action / Science fiction
Life was an adventure for Ecco, the young dolphin. The ocean seemed endless with rolling breakers to race through! At high speed Ecco could burst through the waves leaping through the air – almost flying! Until one day, all of that changed. A freak whirlpool of air and water tore the life from Ecco’s home leaving Ecco all alone. Now he must fight to stay alive, while traversing the vast ocean in search of clues that will help him save his family and return them to the bay.

Sonic the Hedgehog is a 2D side-scrolling platformer developed by Sonic Team and published by Sega for the Genesis/Mega Drive. Players control Sonic the Hedgehog, who can run at near supersonic speeds and sets out on a quest to defeat Dr. Robotnik, a scientist who has imprisoned animals in robots and seeks the powerful Chaos Emeralds.

Puzzle / Role-playing (RPG) / Adventure / Action / Fantasy
Prince Ali has excavated a gold armlet which belonged to a powerful sorcerer. As soon as Ali tried on the armlet, a strange fire with a face appeared and spoke to him. “The power of the gold armlet is now your’s to wield. Find the four spirits this gold armlet governs and stop the evil ambitions of the one with the silver armlet.”

Platform / Adventure / Action / Fantasy
The whole Kidd family is upset! Alex’s father, King Thor, is missing, and they suspect he has been kidnapped by Ashra, the mean ruler of the planet Paperock. Alex speeds to Paperock to investigate, but the creatures of Paperock decide to hinder his efforts and try to keep him away from Sky Castle, Ashra’s hideaway. Luckily Alex knows how to jump, punch and kick his way through the most stubborn of enemies.

Platform / Adventure / Arcade / Action / Science fiction
By the year 2049, Earth has been turned into a toxic waste dump. Humankind has fled into space leaving behind an army of mechanized “Orbots” to clean up the mess. But when the Orbot leader “WarHead” goes haywire and starts a global revolt against the humans, it falls on the shoulders of the last Orbot loyal to its human masters to save the planet.

Shooter / Platform / Action / Science fiction
A crow is chasing a worm named Jim while in outer space Psy-Crow is chasing a renegade ship. The ship's captain has stolen an ultra-high-tech-indestructible-super-space-cyber-suit and Queen Slug-for-a-Butt has ordered Psy-Crow to get it, since it can make her more beautiful than Princess-What's-Her-Name. Psy-Crow blasts the captain and the suit falls to Planet Earth. Back on earth Jim wonders if he is finally safe when an ultra-high-tech-indestructible-super-space-cyber-suit lands on him. Luckily Jim rests in the neck ring of the suit. Then the space particles begin interacting with Jim, causing a light-speed evolution. Jim soon realizes he is in control of the suit. Jim overhears the Queen's plans for the suit and decides to meet this Princess...