Crocodile

The Crocodile is a character from the Neverland world, and one of Captain Hook's enemies. He acquired a taste for the pirate captain when Peter Pan chopped off the captain's hand and fed it to him. He now follows Hook around everywhere, hoping to get a second taste of the captain. The crocodile isn't quite a villain, since he primarily hunts Captain Hook, but he does attack Sora and Ventus.

The crocodile swallowed a ticking alarm clock, that now, unfortunately for the crocodile, warns Captain Hook if he is approaching. This has become something of a trademark for the crocodile, foreshadowing its arrival in a way that terrifies the captain, much to his humiliation.

Kingdom Hearts Birth by Sleep
Peter Pan (1953)

Captain Hook's most feared enemy.

Just a few ticks of the clock he swallowed are good enough to send Hook running for dear life.

Kingdom Hearts
''A seagoing reptile big enough to swallow a man whole -- and he's always hungry! He got a taste of Hook once and never forgot it. Hook can tell when he's near by the sound of the clock ticking away in his stomach.''

He had a taste for Captain Hook in "Peter Pan" (1953).

Kingdom Hearts Birth by Sleep
When Terra visits Neverland, the Crocodile scares Captain Hook away in Skull Cave.

The Crocodile also scares Captain Hook during Ventus's fight with the captain. As they battle, the Crocodile attacks Ventus if he gets too close to the water. Likewise, if Captain Hook is driven into the water by Ven, the Crocodile damages him and then chases him back onto the rock. After Ventus wins the battle, the Crocodile chases Captain Hook back to his ship.

The Crocodile frightens Captain Hook away yet again in the gully during Aqua's visit to Neverland.

Kingdom Hearts
After Sora and Peter Pan defeat Captain Hook, he falls into the water, only to be chased away by the Crocodile.

Le Crocodile Krokodil