You can play online Snets using ZNET
http://emu.z-net.us/2013/05/z-net-i-v1202-beta.html
You will need ZSNES 1.42 and 1.36
http://www.zsnes.com/index.php?page=files
To ne able to connect you will need to Portforward TCP 4000 and UDP 7845. A step by step guide is found here, just click on your router manufacturer.
http://portforward.com/english/appli...ES/default.htm