|Video game debut|
Giga Gagagigo is a character version of the card, "Giga Gagagigo".
Giga Gagagigo appears in the video game, Yu-Gi-Oh! World Championship 2008. After the player have obtain the volcano treasure Limiter Removal and give to Kozaky. Kozaky will use the treasure on Gigobyte and Gigobyte will then become Giga Gagagigo. Corrupted by power, Kozaky ask the player for help. By beating him, it can unlock Kozaky as a single dual opponent.
In World Championship 2008, Giga Gagagigo uses a Warrior Deck titled, "Gigagiga Heart".