In Super Smash Bros. Melee, All-Star mode is an unlockable 1-player mode which pits the player up against every character in the game. The battles consist of a set amount of randomly picked characters teamed against the player, and the last fight is always against a team of 25 Mr. Game & Watches.
However, the player does not automatically regain health in between battles, with only way to heal being one of three Heart Containers available in between matches. These Heart Containers, unlike normal containers, heal the player up to 999% (restoring the player to 0%) instead of only healing 100% damage. However, if the player enters the portal while damage is being healed, then the damage will not heal any further, and the next match will start with the same amount of damage the player had when he or she entered the portal. The player can also absorb damage with Ness' PK Magnet and create food with Mr. Game & Watch's Judge.
In order to unlock All-Star mode, one must unlock every character.