How do you see Celebi in Super Smash Bros melee

You can get celebi from a poké ball in SSBM. You will only see it after you've managed to unlock every hidden item except for the trophies - this includes all stages, characters, event matches, All-Star Mode, the score display, random stage select and the sound test, and I think (although I'm not certain) it also includes Mew (has a 1 in 251 chance of appearing from a poké ball after you've unlocked all 11 hidden characters), fighting Giga Bowser at the end of Adventure mode and fighting the Crazy Hand at the end of Classic Mode. Just keep throwing poké balls till it appears. It's only a 1 in 251 chance though! When it finally does appear, you will receive the Celebi Catcher bonus and the Celebi trophy.