The Atari Flashback series are a line of dedicated video game consoles designed produced published and marketed by AtGames under license from Atari SA. The Flashback consoles are "plug-and-play" versions of the Atari 2600 console. They contain built-in games rather than using the ROM cartridges utilized by the 2600. Most of the games are classics that were previously released for the 2600 although some Flashback consoles include previously unreleased prototype games as well. The series began in November 2004 with the release of the original Atari Flashback designed by Legacy Engineering Group. It features 20 games including 15 that were originally released for the Atari 2600 and five that were released for the Atari 7800. The Flashback was designed to resemble a smaller version of the 7800. Each subsequent home console in the series is modeled after the 2600 and the original Flashback is the only one that includes games from the 7800 library.