man dolphin-emu

[Shonumi]

SSBM, SSBB, and SSB (Virtual Console) would be great for an arcade cabinet, especially since the controls are super simplified compared to other fighting games. Wouldn't try to play pro-tournaments with the thing though (GC controller ftw). MK-DD, MK64 (Virtual Console), MK Wii, Mario Party games on the GC and possibly Wii, any Bomberman game, and Star Fox 64 and that other GC shooter Star Fox (the name escapes me atm). All of those would give you a slightly arcade-ish feel and most (by their GC nature) don't need a Wiimote, emulated or real.