What are all the levels in Super Smash Bros melee

It depends on what you mean by "levels." Here is the complete list of event matches, if that's what you mean:

• Trouble King
• Lord of the Jungle
• Bomb Fest
• Dino-Wrangling
• Spare Change
• Kirbys on Parade
• Pokemon Battle
• Hot Date on Brinstar
• Hide 'n' Sheik
• All Star Match 1
• King of the Mountain
• Seconds, Anyone?
• Yoshi's Egg
• Trophy Tussle 1
• Girl Power
• Kirby's Air-Raid
• Bounty Hunters
• Link's Adventure
• Peach's Peril
• All Star Match 2
• Ice Breaker
• Super Mario 128
• Slippy's Invention
• The Yoshi Herd
• Gargantuans
• Trophy Tussle 2
• Cold Armour
• Puffballs Unite!
• Triforce Gathering
• All Star Match 3
• Mario Bros. Madness
• Target Aquired
• Lethal Marathon
  
• Seven Years
• Time for Checkup
• Space Travelers
• Legendary Pokemon
• Super Mario Bros. 2
• Jiggly Puff Live!
• All Star Match 4
• En Garde!
• Trouble King 2
• Birds of Prey
  
• Mewtwo Strikes!
• Game & Watch Forever!
• Fire Emblem Pride
• Trophy Tussle 3
• Pikachu and Pichu
• All Star Match Deluxe
• Final Destination Match
• The Showdown