>>712707172
Part of what makes 6 so classic (and how big of a part is up to debate) is how much it pushed the bar on things like graphics (especially the mode 7 shit), sound, characters, and the rather dark plot especially when you consider the other SNES offerings of the time.
If you backtrack after playing some of the PS1 games that were also big leaps, it's not so impressive by those standards anymore.
The game absolutely holds its own, but that is a factor regardless.