This is a list of the unlockables from Super Smash Bros Crusade.
You can unlock only in version 0.8.3. With the newer version, there are available right from the start.
Complete 40 Versus Matches OR play an Team Battle Online
Complete 20 Versus Matches OR play a Versus Match that has both Sonic and Tails.
Complete 50 Versus Matches OR clear Classic Mode using Mario or Peach on Hard difficulty or higher.
Complete 30 Versus Matches OR play a Versus Match that has Porky or Ridley at Castle Siege