Red Dragon Archfiend/Assault Mode, known as Red Demons Dragon/Buster in the Japanese version, is a character version of the card "Red Dragon Archfiend/Assault Mode" and "/Assault Mode" form of Red Dragon Archfiend. Red Dragon Archfiend/Assault Mode appears in the video game Yu-Gi-Oh! 5D's World Championship 2009: Stardust Accelerator. He and Soldier of Mist Valley can be unlocked as a Tag Team, if the player Summons "Red Dragon Archfiend/Assault Mode" in a Duel.