|Video game debut|
Alien Mars is a character version of the card, "Alien Mars".
Alien Mars appears in the video game, Yu-Gi-Oh! World Championship 2008. It appears as a Tag Duel opponent and its Tag Partner is Alien Psychic. They can be unlocked if the player has beaten the team known as, First Contact five times. Their team name is Counter Culture.
In World Championship 2008, Alien Mars uses an Alien Deck titled, "Breakdown Attack".