SDL MAME Wii is an Arcade Emulator based on SDLMAME. Many games for early arcade boards can be played with varying amounts of success.
Changelog
0.6 - January 12, 2011
Compiled with libogc 1.8.6, USB loading should be faster now if you have IOS58
Changed video code around. Most games get a speedup or remain the same from this, but at least one (frogger) is slower for some reason.
Widescreen support
Fixed some games giving duplication errors and causing the emulator to exit