King K. Rool

King K. Rool is the antagonist of most of the Donkey Kong series. He is a large Kremling with a gold crown, he rules over the Kremling Krew and tries to take over Donkey Kong Island. At times, King K. Rool tries to steal members of the Kong Family along with Donkey Kong's Banana Hoard. He went by the alias of Kaptain K. Rool being pirate themed in Donkey Kong Country 2: Diddy's Kong Quest and Donkey Kong Land 2 while in Donkey Kong Country 3: Dixie Kong's Double Trouble! and Donkey Kong Land III he went by the alias of Baron K. Roolenstein, which is mad scientist themed.

As a King
King K. Rool's most common form, the King form which is used on all of the games he appears in except for Donkey Kong Country 2: Diddy's Kong Quest, Donkey Kong Country 3: Dixie Kong's Double Trouble, Donkey Kong Land 2, Donkey Kong Land III where he takes on the forms, Kaptain and Mad Scientist. He has a red cape and a sharp crown in his King form.

As a Pirate
King K. Rool's second form is as a pirate where he is referred to Kaptain K. Rool. Him, along with many of his minions, are dressed up like pirates. He appears as this form in Donkey Kong Country 2: Diddy's Kong Quest and Donkey Kong Land 2. In this form, King K. Rool has a brown cloak on, a black pirate hat, a cannon shooting cannonballs, and a belt with a skull in it. Kaptain K. Rool uses the cannon as a weapon in the game. His name is derived from the word captain which is replaced by a "k", explaining that K. Rool is a Kremling.

As a Mad Scientist
King K. Rool's most recent form is a mad scientist and he is referred to Baron K. Roolenstein. He has black hair, a jetpack with helicopter blades, and a white lab coat. He also has black gloves on. He mainly uses his jetpack as a weapon. King K. Rool takes on this form in Donkey Kong Country 3: Dixie Kong's Double Trouble! and Donkey Kong Land III. This name comes from a famous monster, Frankenstein.