Butter Building is the ninth stage in Kirby Fighters Deluxe. The arena is based on the sections of Butter Building in which Kirby would walk around the outside of it, as it appears in Kirby's Adventure.
Butter Building has an upper and lower portion. The main hazards are that the building rotates and enemies appear from the sides of the stage. Such enemies include groups of Starmen, Bronto Burts, and Laser Balls. UFO Kirby can appear as well, typically dropping food; rarely, he may drop a Bomber. All of the enemies, including UFO Kirby, can be defeated. The music that plays is Butter Building's theme from Kirby's Adventure.