The SEGA Master System is a game console manufactured by SEGA and released in October 1985.
A Master System version of Double Dragon was released on October 1, 1988. It featured two-player cooperative gameplay and its graphics were superior to the NES version, but the level design and sound were more similar to the arcade version. (The NES version, by comparison, had more creative stage layouts and more memorable music.)
The Master System version did have one horrible eyesore: pixel flickers. While the NES version can only hold two enemies on the screen at once, the Master System version can hold three. For an 8-bit machine, this is overload, and this sometimes results in graphical glitches like those in the Atari 2600 port of Pac-Man. Apart from these glitches, however, this is considered to be a good port of the game.