Once your Wii is connected to the 'net, go to the Wii Shop Channel in the Wii Virtual Console and you'll find it full of classic console games that download to your system for a fee.
Games include titles from the SEGA Genesis, TurboGrafx-16, TurboGrafx-CD, Neo-Geo, Nintendo Entertainment System, Super Nintendo and the Nintendo 64. To play these games you'll need a GameCube controller or a Wii Classic Controller.
Below are titles A through F.
For more games check out Part 2 - Titles G through Z.
Fatal Fury 2
Original Platform: Neo GeoPublisher: D4 Enterprise
Developer: SNK
Original Release Date: 03/1993
ESRB Rating: T for Teen
Final Fight
Original Platform: Super NintendoPublisher: Capcom
Developer: Capcom
Original Release Date: 11/10/191
ESRB Rating: E for Everyone
Final Soldier
Original Platform: TurboGrafx-16Publisher: Hudson Soft
Developer: Hudson Soft
Original Release Date: 1991
ESRB Rating: E for Everyone
Forgotten Worlds
Original Platform: SEGA Genesis/Mega DrivePublisher: Capcom
Developer: Capcom
Original Release Date: 1989
ESRB Rating: E for Everyone

