Connects N64 controllers to Gamecube / Wii * Built-in two sets of KEY MAPPING * Supports RUMBLE function, Programmable AUTO FIRE function * Ability to connects PS / PS2 / Wii Classic controllers to GC / Wii (click on diagram above) * Supports PS dancing mat Connect your classic controllers to the Gamecube and Wii! Swap between two KEY MAPPING modes (for N64 controllers only) - There are two built-in KEY MAPPING modes, which are specially designed to match the key settings of different N64 games on Wii (Virtual Console). Button Swap function (for N64 controllers only) - Allows user to swap any buttons freely. Analog Stick Adjust function (only for fixing defective analog stick of N64 controllers). - After being used for a long time, the analog stick of most old N64 controllers could not reach their full range. This function could solve the problem. Auto Fire function (for PS / PS2 / Wii Classic controllers only) - Allows user to enable Auto Fire for all buttons freely. Play your favorite games with your favorite controllers!
When I tried to play Majora's mask (collectors edition gamecube disc), the shoulder buttons didn't work. Obviously some sort of compatibility issue. I didn't try, but I'm sure it works fine for its intended purpose, which is playing classic n64 games downloaded from the Wii market.