Super Smash Bros./Unlockables

Characters

 * Captain Falcon: Complete 1P Game in 20 minutes or less.
 * Jigglypuff: Complete 1P Game with any character.
 * Luigi: Complete Bonus 1: Break the Targets with all starter characters.
 * Ness: Complete 1P Game on Normal with 3 stocks and no continues.

Stages

 * Mushroom Kingdom: Complete 1P Game with all starter characters and use all starter stages at least once in VS. Mode.

Other Game Modes

 * Sound Test: Complete Bonus 1: Break the Targets and Bonus 2: Board the Platforms with all 12 characters.
 * Item Switch: play in 100 matches.

Items

 * Mew: available after unlocking all unlockable four characters. Very rare in a Pokeball as it has a one out of 151 chances of doing so.