FCE Ultra GX is a modified port of FCE Ultra v0.98.12. With it you can play NES games on your Wii/GameCube. The GUI is powered by libwiigui.

Changes:

Fixed SD/USB corruption bug
SMB works again
GUI bugs fixed, GUI behavioral improvements

Free and legal NES roms to try with this emulator can be downloaded from here: http://www.pdroms.de/files/nes/

News Source: http://wiibrew.org/wiki/FCE_Ultra_GX

http://wiibrew.org/wiki/FCE_Ultra_GX