Ness
• Play five matches in Brawl
• Reflect 10 projectiles
• Get Ness to join your party in The Subspace Emissary
Marth
• Play 10 brawls
• Finish Classic mode on any difficulty level
• Get Marth to join your party in The Subspace Emissary
Luigi
• Play 22 brawls
• Beat Classic with no continues
• Get Luigi to join your party in The Subspace Emissary
Falco
• Play 50 brawls
• Clear the 100-Man Brawl
• Have Falco join your team in The Subspace Emissary
Captain Falcon
• Play 70 Brawls
• Beat Classic Brawl Mode on the Normal difficulty setting or greater in less than 12 minutes
• Get Captain Falcon to join your party in The Subspace Emissary
Lucario
• Play 100 brawls
• Beat Target Smash!! on all difficulty levels (Playing in either 1 or 2 player mode will satisfy this condition.)
• Get Lucario to join your party in The Subspace Emissary
R.O.B.
• Play 160 brawls
• Get 250 different trophies
• Get R.O.B. to join your party in The Subspace Emissary
Mr. Game and Watch
• Fight in 250 brawls
• Clear Target Smash with 30 different characters on any single difficulty level
• Have Mr. Game and Watch join your party in The Subspace Emissary
Ganondorf
• 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.)
Jigglypuff
• Play 350 brawls
• Beat 20 or more Events after clearing The Subspace Emissary
• Pass through the hidden door in The Swamp area after completing The Subspace Emissary
Toon Link
• Play 400 brawls
• After clearing The Subspace Emissary, clear Classic mode
• After clearing The Subspace Emissary, enter the hidden door in The Forest
Wolf
• Play 450 brawls
• Beat the Boss Battles mode with Fox or Falco after completing The Subspace Emissary
• Pass through the hidden door in The Ruins area after completing The Subspace Emissary
In order to unlock somebody, you must satisfy one of the above conditions and then beat them in a brawl. [Unlocking whom doesn't require a versus challenge during the adventure mode, but Toon Zelda, Wolf, and Jigglypuff.]
