Super Smash Bros./Unlockables

Characters

 * Luigi: beat Luigi after beating Bonus 1 Practice with eight different characters.
 * Captain Falcon: beat Captain Falcon after beating 1P Game mode in less than 20 minutes.
 * Ness: beat Ness following the ending after beating 1P Game mode on Normal difficulty setting or greater with up to 3 lives in stock.
 * Jigglypuff: beat Jigglypuff following the ending after beating 1P Game mode.

Stages

 * Mushroom Kingdom: beat 1P Game mode with 8 different characters. You must also have played on all 8 original stages in VS mode.

Other Game Modes

 * Item Switch: play in 100 matches.
 * Sound Test: clear both Bonus 1 Practice and Bonus 2 Practice with all characters.

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.