Druaga

Druaga (ドルアーガ) is a cameo character from Namco's The Tower of Druaga, a maze-based action role-playing arcade game released in 1984. He is a demon that resides in the Tower of Druaga, which also makes an appears in a few Tales titles, and is portrayed as a large green monster with eight arms, four legs, and yellow eyes.

Tales of Destiny (PSX)
Druaga makes his first Tales appearance in the original PlayStation version of Tales of Destiny, serving as the boss of the game's EX Dungeon, aptly named the Tower of Druaga. Much like the original Namco title, this Tales incarnation of the dungeon features maze-like corridors with Druaga himself being found on Floor 59, requiring three weapons in order to be damaged and defeated.

Tales of Phantasia: Narikiri Dungeon
Druaga makes another appearance in Tales of Phantasia: Narikiri Dungeon, though he is the only boss in the game not based on an Arcana Card.

Tales of the World: Narikiri Dungeon 3
Druaga serves as the boss of the Tower of Druaga in Tales of the World: Narikiri Dungeon 3 as well, playing a role that mirrors the original Namco title. Julio Sven wears the "Gil" costume in order to access the dungeon, a nod to the original game's hero, and must rescue the priestess Ki by defeating Druaga.