You can load ROMs and saves from a FAT formatted SD or USB (details on the folders required are in the readme). See the included readme for details on the controls. The emulator can be controlled with any combination of GC controllers, Classic Controllers, Wiimotes with Nunchuks and even just Wiimotes. Not64 is available to download from the thread at GC Forever. Not64 is an 'experimental modification' of Wii64, forked from the 'Beta 1.1 'Honey'' version to include several fixes and additions.