KKDU

The title of this article is official, but it comes from a German source.
If an acceptable English name is found, then the article should be moved to the new title.

KKDU's true form (left), and his human disguise called Heini (right)

KKDU is a purple Alien with wings and tentacles and is the main villain of the comic story "Sag niemals Holerö!", published in the German Club Nintendo magazine. Only near the end of the comic does KKDU reveal his true appearance; otherwise, he appears in human disguise as a Schlager singer called Heini (pronounced HIGH-nee). KKDU comes from a planet called Ualeh. His Alien form is based on the fictional cosmic being Cthulhu created by H.P. Lovecraft, while his home planet Ualeh is a reference to Cthulhu's home, the lost city of R'lyeh. His alias Heini is named after German folk singer Heino.

KKDU is part of a group of Aliens planning to invade Earth; his command is to turn the planet into a "fast food restaurant". For this reason, KKDU appears in his Heini form on Earth, singing a song called "Holerö" that turns all humans who listen to him into food. Mario, TicToc and Bomberman are among the few people who can resist the spell, and soon attempt to stop the evil Alien. They are supported by Todojewski and Mahgo, who explain KKDU's plans to them, but also are fooled by KKDU's allies Nicole, Pia, and Balu.

The heroes are finally able to find and defeat the Alien in the Alte Oper, Frankfurt. A concert by Heini is announced there, and Mario and his friends get into the kitchen, where they overhear Heini talking to one of his fellows. Heini reveals his true Alien appearance, and the transformed humans are served to his Alien fellows. However, TicToc and Bomberman use their powers of stopping time and throwing bombs (respectively), while Mario and Bomberman evacuate the food people. The bombs explode, and the people are saved. However, KKDU manages to escape and takes a spaceship back to his home planet Ualeh, announcing that he will return.