To get the All Star Mode, unlock all of the Secret Characters.

To get the Sound Test, beat Event 51 and have all secret characters and stages unlocked.

To get the Random Stage Switch, unlock all of the Secret Stages.

To unlock Events 31-39, beat Events 1-30, and have Luigi, Dr. Mario, Young Link, Falco, and Jigglypuff unlocked.

To unlock Events 40-50, unlock all secret characters and stages.

To unlock Event 51, beat Events 31-50.

To get the Captain Olimar (from Pikmin) trophy have a Pikmin save on the same Memory Card as SSBM.

To get the Score Display, you must have 5,000 KO's.