droid n00b snes emulator help

I had much success with my PSP back in the day so I figured I would just turn my brothers old nexus into the game machine I never had.
My main problem seems to be 1) finding a top tier free snes emulator( cannot find snesoid in market) 2) get the roms to work...
The catcher is that I don't have computer access or service on my phone so it all has to be done over my neighbors wifi(unlocked wifi ftw)
All I want is some good ole earthbound and ff tactics lol is this too much to ask for!!!

PS. I'm not buying a damn emulator just to get the save state.
Thanks bromigos -dmtyler