Due to the game's events taking place in the year 2613 (twenty-eight years prior to the events of Contra: Hard Corps), it is still uncertain if these two individuals are the same, with the former representing the colonel in his youth. Hard Corps: Uprising features a young soldier as the main character who shares the same name as the villainous colonel. In the end, Bahamut's nefarious plan was stopped. To prevent that the government's special forces, namely the Hard Corps, got in their way, he hired the aid of the expert hacker Noiman Cascade to mastermind a robot outbreak, and also sent the mercenary Deadeye Joe to personally command the operation. Two years later, Bahamut allied with Doctor Geo Mandrake so that the former could steal an organic cell retrieved after the war containing the Mother Alien's DNA from a government research facility and examine it. Following the end of the conflict, however, he attempted to overthrow the government for unknown reasons, although he was eventually stopped. Colonel Bahamut was among those who fought against Red Falcon's forces during the Alien Wars, where he was recognized as a war hero.

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