Technos' Double Dragon has to rank as one of the most seminal arcade games of all time. While it wasn't the first side-scrolling fighter by a long way, it laid down the foundations of the genre and inspired countless clones and even a (terrible) Hollywood movie. It also played a significant role in the cult film The Wizard.
The brainchild of Yoshihisa Kishimoto, Double Dragon was the spiritual successor to Nekketsu Kōha Kunio-kun, known in the west as Renegade. An instant hit in arcades and ported to practically every home system at the time, Double Dragon was followed by numerous sequels and remakes.
If you're keen to know more about the series and have a spare 30 minutes, then Daniel Ibbertson has put together another of his excellent videos which goes into an incredible level of detail regarding not only the original release but the games which inspired it and the developers involved.
Give it a watch and let us know what your favourite Double Dragon title is by posting a comment.