Dark Panther first appeared when Jaden drew him during a Duel with Aster against Sarina and her copycat. He told Jaden that "Destiny Hero - Dasher" is calling him out and he told him to use his power. Jaden, then use Dasher's effect to special summon Dark Panther and use his effect on "Dark Creator". He then used the effect of "Infinite Fiend Mirror" to Summon "Dark Creator Token"s and tribute two of them to Summon "Elemental Hero Neos". Then he Contact Fused "Neos" with "Dark Panther" to form "Elemental Hero Dark Neos". He use Dark Neos's effect to negate Dark God effect and use the "Dark Creator Token" to attack "Dark God". By destroying Dark God, all of the tokens got destory by the effect of "Infinite Fiend Summoning". Lastly, he use "Dark Neos" to attack directly and win the Duel.
In Yu-Gi-Oh! World Championship 2008, he appears as a Tag Duel partner. When the player unlock World four Darkness, Dark Panther come to the player and told the player that this world only conduct Tag Duel. He will give the player a brief explanation about Tag Duel and after he is finish, he will go found a team for the player to practice. So that the player understand the difference between a Tag Duel and a Single Duel. The player will then face Darkblaze Dragon and Mythical Beast Cerberus in a Tag Duel. After the player has defeated the team, he will encourage the player to Tag Duel often to understand it more. Finally, he will tell the player that the Duelists who are record in the Duelist Registry may become the player's Tag Duel partner and tell the player that he/she can't select the other team tag partner as their partner. He tell the player, they can make a change in Options to choose a partner that suit them and the player can construct a deck similar to their partner. He encourage the player to show this world what they can do. When the player and Neo-Spacian Dark Panther became a team, their first team name are called First Tag. The player can either stick with this name or change it.