Kirby's Adventure
Kirby's Adventure is a masterpiece in Super Smash Bros. Brawl.
Origin
While not the first Kirby game, Kirby's Adventure is notable in that it introduced Kirby's Copy Ability, as well as the character Meta Knight.
In Super Smash Bros.
Kirby's neutral special and down special originate from the game.
In Super Smash Bros. Melee
The stage Fountain of Dreams is from this game, though its music is not. Kirby's new side special, Hammer, also comes from Kirby's Adventure.
In Super Smash Bros. Brawl
Meta Knight originates from Kirby's Adventure. His down special, Dimensional Cape, also comes from the game. In addition, the Butter Building music from Kirby's Adventure is featured as a track for the Halberd stage.
The most notable appearance of Kirby's Adventure in Brawl is its appearance as a masterpiece, being playable from the beginning.