I doubt a website emulator would support anything like that, but downloadable NES emulators certainly do. I won't link anything because I'm still not 100% certain on RAFO's copyright policies (I'll check with Ben) but google should be able to easily help you out.
My good buddy Brian has, once again, used his knowledge of everything to do with computers ever and found stuff for me. Something like download the Emulator then the ROM, and i found some cheap SNES controllers that will hopefully work
Thanks again 
~~Del
"It feels like someone with a fever is yelling at my pants!"
Note: Just because we moved does not mean I shall stop abusing the smileys
Note: Just because we moved does not mean I shall stop abusing the smileys
Is there Super Mario Brothers for the computer?
- 08/09/2009 07:57:12 AM
1013 Views
VNES to the rescue
- 08/09/2009 06:20:08 PM
826 Views
Or any of a dozen other sites showing up on the first google results page. 
*NM*
- 08/09/2009 07:17:34 PM
366 Views
*NM*
- 08/09/2009 07:17:34 PM
366 Views
This is very nice
- 08/09/2009 07:59:08 PM
869 Views
You probably could with a downloadable emulator.
- 08/09/2009 09:23:38 PM
753 Views
Thanks a lot
- 08/09/2009 11:10:31 PM
821 Views
Emulators are legal (at least in the US, so yeah, check with Ben); ROMs are not.
- 09/09/2009 01:15:15 AM
718 Views
True, but the distinction is only a matter of semantics.
- 09/09/2009 01:53:09 AM
687 Views
Some roms are considered abandonware. However I assume Mario Brothers is not. *NM*
- 09/09/2009 09:30:00 PM
493 Views
Abandonware is not a legal term.
- 10/09/2009 12:19:19 AM
682 Views
Indeed
- 10/09/2009 12:28:30 AM
671 Views
Yeah there's not really any point.
- 10/09/2009 12:32:10 AM
650 Views
Well, they've made their money off me....cause that's the only reason I ever end up there. *NM*
- 10/09/2009 12:42:06 AM
300 Views
*NM*
- 10/09/2009 12:42:06 AM
300 Views