Oh, by all means, it plays smoothly and has a nice vibe overall. I liked the verbatim positioning of the SNES/Arcade versions.
Was wondering if you're interested in having alter palettes of the SNES sprites with the arcade colors (of course, you'd use them only in the Arcade version or in the Custom one if you must), if you want I can do the palette coloring for you, exact replica colors. That would give a different vibe not only in the order of enemies but also a bit in their appearance.
For the music of the new areas... maybe you could try tracks from FF2 and FF3 in order to keep the SNES theme? I don't know, I think that would be consistent.
Found another couple of quirks that could be arranged. In Final Fight, when you grab an enemy, you'll throw him/her towards the direction you pull the stick (front or back), in the mod, while doing the forward + grab, the character will continue doing the flurry grab instead of throwing him/her forward. Once again, these are details to go as faithful as the original gameplay.
...and if I throw an enemy to the wall and I'm near the wall, Ill be hit by the falling enemy as well... not fun, lol.
Oh yeah, some character are missing their special feature, as in Haggar unable to do his piledriver (does a knockdown headbutt if I press jump while grabbing an enemy) and Guy won't do his off-the-wall jump either.
Probly you'd hate me by giving all this feedback (yeah, I'm the sort of nitpicky guy, sorry about that), but I really have hopes this mod can be as perfect as it can be since so far it catches the vibe of the old SNES game.... and probably can surpass the original, considering they have new special moves, all the enemies from the American and Japanese version together (always good to see Sid and Roxy together) and extra frames, not to mention a new remixed version.
I'm doing a mod myself for the SORmaker game based on Mighty Final Fight using 16-bit/CPS1 style of graphics, I could show you some of my work later on and see if you like it, if so, I can design something for you.