These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
The player select music sounds is a combination of the chorus from Sister Sledge's song "We Are Family" and the intro riff from Heart's "Barracuda."
Biff's entrance theme started like the stage clear theme from Axelay.
Alexander the Grater's entrance song had a section similar to that of the verses in Metallica's "Blackened."
The New York stage music has a hint of Peter Gabriel's "Sledgehammer."
Scorpion's stage music in Ring of Destruction has a Sagat feel to it.
Woolseyism: All of the characters had their names (except for Haggar, who simply lost his "Macho" nickname) and backstories changed for the English release. Slamkovich references Zangief in his losing quote, and Gunloc is implied to be Guile's brother. Moreover, the setting was changed from being set before Final Fight to being set after (Haggar is described as the "ex-Mayor of Metro City"). Alexander the Grater and King Rasta Mon also had their nationalities changed to Americans, while Jumbo Flap Jack became Canadian.