Ancient Gear Golem is a character version of the card, "Ancient Gear Golem".
Ancient Gear Golem appears in the video games, Yu-Gi-Oh! Ultimate Masters: World Championship 2006 and Yu-Gi-Oh! World Championship 2007. In World Championship 2006, it appears as a Limited Duelist and it challenges the player to not Special Summons. In World Championship 2007, it appears as a Level Five Limited Duelist and it challenges the player to do the same challenges in 2006. By beating it, the player gets closer to unlocking Level Six Limited Duelists and a new Booster Pack.
In World Championship 2006, Ancient Gear Golem plays a Gadget Deck titled, "The Art of War". In World Championship 2007, it plays a Machine Deck titled, "Once Per Turn".