As a last joke on the ill-fated Captain Jack Sparrow, Hector Barbossa and the mutinous crew of The Black Pearl named their pet monkey, Jack. When the crew became cursed for stealing the Aztec treasure, the monkey also became cursed (undead) as well for taking some of the coins. Now, little Jack lives with Barbossa in Barbossa's Grotto on Devil's Anvil. Hector has the pirate player use Jack for target practice when he first shows them how to use a pistol. After all - the cursed little monkey can't die no matter how many times you shoot him, or attack him in any way, with any weapon.