Bear King

Bear King is the main villain of the second movie, the leader of the Trump Siblings Pirate that rule over Clockwork Island. He has the Kachi Kachi no Mi (カチカチの実), which allows his body to become hard as a rock, and he can heat his fist up at will. He and his siblings ruled over the island for seven years, during which time they forced the scientists there to build a cannon for them, with which Bear King could use to become the Pirate King. He also tries to force Nami to marry him when the Trump Pirates capture her. He is defeated when he tries to fire a cannon bullet at Luffy, only for the rubberman to slingshot it back at him with his Gomu Gomu no Screw move. Bear King catches it but the vibrations from the bullet's spin proves to be too much for the glass floor he is on and he plummets to his demise with his cannon before the bullets blow him up during his fall.

Trivia

 * Every member of Bear King's crew had a animal and card based themes. Bear King was obviously based on a bear and the King.