Paper Bowser is the main antagonist of the Paper Mario series. In Paper Mario, bowser steals the Star Rod from the Star Spirits to cast invulnerability on himself and create virtually infinite wishes to defeat Mario and win Princess Peaches heart. Bowser was unsucessful, and he was defeated by Mario using the power of the Star Spirits. In Paper Mario 2: The Thousand Year Door, Princess Peach was kidnapped but not by Bowser. Shocked, bowser attempted to collect the Crystal Stars to kidnap Peach for his own; also failing here. In Super Paper Mario, Bowser becomes an ally with Mario and his party. He is a fully playable character in this game. He works together with his arch enemies to prevent Count Bleck from creating an interdimentional rift to destroy the universe. Bowser and his party members eventually succeed and halt Count Bleck.
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The great king of the Koopas who plots to rule the land with a firm fist. In a change of events, Bowser goes from being Mario's rival to adventuring side by side with him. Bowser's special skill is breathing fire and he has nearly twice the attack power of Mario or Peach, which allows him to take out foes from a distance or multiple enemies with a single blow.