|Japanese translated||Kozo Kiba|
|Tag Force||Winning Ceremony|
|Tag Force 2||Great Ritual|
|Tag Force 3||Great Ritual|
|Video game debut||Yu-Gi-Oh! GX Tag Force|
Lioside, known as Kozo Kiba in the Japanese version, is a character appearing in the Tag Force series.
Lioside can be found at the back of the classroom before class begins each day. In Tag Force 2 and Tag Force 3, he cannot be found on the field at any other time, and can only be faced in Single Duels.
Tag Force 2-3
|Strongly likes||Likes||Neutral||Dislikes||Strongly dislikes|
Lioside uses Ritual Summon Decks, using "Contract with the Abyss" and "End of the World" to quickly summon powerful Ritual Monsters. In Tag Force 2 and Tag Force 3, he can also use "Advanced Ritual Art" with Normal Monsters as well.