Double Dragon III: The Arcade game is a fairly faithful port of DDIII: The Rosetta Stone. It features extra unlockable characters and techniques, as well as an added dashing ability.
Billy & Jimmy went on a journey to complete their martial arts. On their return home two years later, they met a fortune teller.
Find the three Rosetta Stones, then go to Egypt. There you will find the world's strongest enemy, but beware, no one has come back alive.
Neither this game nor the original were developed by Technos, and it shows.
Neither the Mega Drive nor the Genesis have all three Double Dragons. Only DD 1 and 3 are available on the Genesis whereas 1 and 2 are available on the Mega Drive.
Unlike the NES version, this port wasn't developed by Technos and it shows. The combat feels almost nothing like a Double Dragon game and they removed the signature hair pull attack. Buying new abilities and fighters is alright but the core combat is dissatisfying and the enemies are bland. The instruments used for the music can be grating.