Kraken Imagin

The Kraken Imagin appeared in 2007 TV series called Kamen Rider Den-O. Kraken Imagin (クラーケンイマジン Kurāken Imajin) is an evil Imagin in Kamen Rider Den-O. Wielding with a pistol, the Kraken Imagin is able to use it as well as his tentacles for weapons. To fulfill his contract with the Piano Man, he brings him a piano, but, much to his dismay, his contract wasn't fully completed. The Kraken Imagin battled Den-O Sword Form, but the fight ended in a draw, the Imagin escaping.

The Kraken later brought the man another piano, this time to the "correct" location, letting him go back through time, where he fought Den-O Rod Form and was defeated by him. However, the Kraken Imagin turning into a massive flock of Gigandeath Heavens and a pack of Hells that destroy the entire district, negating the existence of those there; it takes all of the time trains to wipe them out, restoring everything within time and memory to normal, except for the original contract holder, whom no one remembered from the time that had been destroyed.