Known export releases:
"Final Fight 3 [Model SNS-AFZE-USA]
The music used for both the title screen and the first stage was used in the secret game of the Street Fighter Zero: Fighter's Generation compilation, Hyper Street Fighter Zero. It can be found in the sound test, and can be heard in game by playing as ZERO3 Guy with Classic Mode.
The continue screen in Final Fight Tough, which features the selected main character tied to a table while a panel with spikes descends on him/her is an homage to the arcade version of Ninja Gaiden (which ironically enough, inspired the intimidating continue screens in both Final Fight 1 and 2), and even the ending notes of the continue theme pay homage to Ninja Gaiden's infamous music sting upon the end of the continue countdown.