One of the best emulators for Super Nintendo, ZSNES (
http://www.zsnes.com/), has a feature where you can play people online in any game. To play online, you need to download another program called Z-Battle-net (
http://www.zbattle.net/). It's pretty easy to setup and there's guides on the pages if you get lost.
I've been playing people in classic SNES games like:
Super Mario Kart
Tecmo Super Bowl
Super Street Fighter 2
For whatever reason, it's tough to get a TSB game started. I remember a discussion in here earlier about people loving TSB, so how about some of you start playing it online! I want more challengers, damnit!
PM me or hit me up on AIM (EscapePlan9) if you want to play me.
I'll also play other games of course, just I want to find more people to play TSB against.