Double Dragon II: The Revenge is a Japan-only port of the arcade classic. This version is known for its poor quality but at least has two-player co-op gameplay and is relatively faithful to the original.
The Black Shadow Warriors. They've gunned down your girl. And you and your brother Jimmy Lee are out for revenge.
This is by far the most arcade-faithful port. The NES version is way different, the PC Engine version's based off the NES version, and the Game Boy version is a re-skin of a Kunio-kun game.
There are Russian bootleg copies of this game that have Ken and Ryu from Street Fighter on the cover.
This is by far the worst version of Double Dragon II. The gameplay is ridiculously choppy and laggy, way moreso than the first DD port. The graphics and sound are well below average as well. That being said, there's a serious challenge here if you're absolutely starving for more brawler action and ain't afraid of the bottom of the barrel.