Garlic Castle was first seen in the movie Dragon Ball Z: Dead Zone. Inside the fortress, there is a garden, a fruit tree, a cuckoo clock and a storey with a balcony.
Nicky was in charge of doing baby sitting for Gohan when the child ate a fruit from the fruit tree and became euphoric. Goku fought Ginger and Nicky at the entrance room, while Piccolo fought Sansho on a higher story. Kami fought Garlic Jr. in the garden; it was also in the garden where Garlic Jr. opened the Dead Zone.
Garlic Castle is named in Dragon Ball Z: Kyōshū! Saiyan where it is the location of the final confrontation with Garlic Jr. and the Makyans in the game. It also appears as a battle stage in Dragon Ball Heroes. One of the game's 3DS ports, Dragon Ball Heroes: Ultimate Mission X, names the castle Garlic Jr. Castle (ガーリックＪｒ．城 Gārikku Jr. Shiro), and it is referred to as Demon Clan's Castle (魔族の城 Mazoku no Shiro) in the title of a chapter in the game's story mode.