King of Fighters Stadium
From the Super Mario Wiki
The King of Fighters Stadium is a downloadable stage that appears in Super Smash Bros. Ultimate, and is based on a tournament from The King of Fighters series. It was released alongside Terry Bogard on November 6, 2019.
The stage takes place on a large metallic platform with a circular center and invisible walls on both sides, which can be broken by KO'ing a player. Below the stage is a grassy field with the Smash Bros. logo on it and "KOF" (for King of Fighters) written inside it. The stage also has a large jumbo tron in the background with "King of Fighters" written above it as well as a large audience watching the fight. When a player is KO'd on the stage, a set of colored smoke rockets go off in the background and four sparklers on the stage itself go off.
Twenty characters from both the King of Fighters series and the Fatal Fury series make cameos on the stage, including Terry's father Andy Bogard, Joe Higashi, Tung Fu Rue, Billy Kane, Geese Howard, Rock Howard, Kim Kaphwan, Ryuji Yamazaki, Blue Mary, Athena Asamiya, Kyo Kusanagi, Iori Yagami, Goro Daimon, Chang Koehan and Choi Bounge, Ralf Jones, Clark Still, Ryo Sakazaki, King, and Yuri Sakazaki. These cameo appearances depend on what music track is playing on the stage.