This Program builds dolphin for you... Dolphin is an emulator that emulates Wii and Gamecube games for Mac OS X. This won’t work with Snow leopard 10.6 or higher for now.
zeroWii supports playing both Wii and Gamecube discs and downloadable games, and it has your typical emulator features like save states, controller support, and various graphical enhancements such as anti-aliasing.
