kozaky
A demonic mad scientist Duel Monster. Uses a Motorcycle-Rider deck in his Yu-Gi-Oh! GX appearance. The creator of the Koaki Meiru archetype and Giant Kozaky. He's also good with cybernetics, as he's the one who turned Gagagigo into Giga Gagagigo and turned Charcoal Inpachi into Woodborg Inpachi.