I guess, in difference of Mania, the game is already forgotten and even Sega left it in the past looking straight to new projects.There's something valuable must be in it for being remembered. Aside from poor character customisation and silly main villian, who got several times kicked by unknown rookie character and simply dissapeared in the end, there is almost nothing notable in the game.
Anyway, I think customisation is the only legacy of this game which may be returned in some forms in the future projects. Or may not, who knows)