Doctor Heinz Doofenshmirtz (2nd Dimension)
Doctor Heinz Doofenshmirtz of the Second Dimension is a minor antagonist in the Kingdom Hearts Unlimited Saga, and the true main antagonist of the Tri-State Area campaign in "The Fantasmic Dreamtime".
A resident of the Negative Dimension, this Doofenshmirtz was allowed a happy childhood by his family, allowing him to feel less like a loser and become more confident in his genius inventing skills, thereby making him a far more insidious, malevolent villain compared to his normal counterpart, however his own villainous backstory was simply losing a toy train. After years of battling against SHIELD's agents, he eventually overcame them and used his army of Norm Droids to conquer his homeworld, establishing a tyranny with himself in charge as dictator. Impressed by his performance, the Dominion XIII contacted this Doofenshmirtz and requested that he pledge his allegiance to Zurg and the Galactic Empire, but 2-D Doofenshmirtz, out of arrogance, refused to accept and instead plotted to take over the entire galaxy himself. Furious, the Dominion's leadership punished Doofenshmirtz' arrogance by sending a troop of Darkhearts to consume the Tri-State Area's keyhole, banishing him and his entire world to the Realm of Sleep to suffer for all eternity. Years later, 2-D Doofenshmirtz would be allowed a second chance to redeem himself when he was freed by his normal universe counterpart by accident using dimensional gateway portal technology, resulting in him taking advantage of the situation to conquer the Tri-State Area all over again in a new dimension, this time aided by a HYDRA faction led by the Machinesmith and King Cobra. However, little did he realize that even this so-called second chance was merely just a game in the Archmage's master plan to lure a certain group of individuals closer into his clutches...