How to Unlock
•  Play 200 matches or more in Brawl
•  Using either Zelda or Link, clear Classic on Hard difficulty or higher
•  Get Ganondorf to join your party in The Subspace Emissary (To do that, save Link and Zelda in Subspace toward the end of the adventure. Ganondorf appears after you clear the stage.)
•  With the exception of the last of the three methods listed above, you’ll need to face Ganondorf in a brawl and beat him after satisfying the above conditions to unlock him.