[1] Takahashi based the character's face and flamboyant personality on British musician Freddie Mercury, and his body is modeled after that of the Japanese ballet dancer Tetsuya Kumakawa.

[2] The King of All Cosmos is portrayed as an aloof and capricious being who constantly berates his son, the Prince, and belittles his efforts to cultivate the katamari ball which somehow falls short of his standards.

[3][4] Prior to the beginning of each level, he provides a summary of mission objectives to the player character as well as brief descriptions for a variety of subjects like countries, geographical features, and living creatures.

During this game, the King of All Cosmos seeks to fulfill the desires of the fans on Earth that he gained during the events of Katamari Damacy, again through directing his son, the Prince, and his cousins to complete each task.

[12] The cover art for the vinyl release of the soundtrack for Katamari Damacy, promoted by Mondo, illustrates the King of All Cosmos and the Prince in poses reminiscent of Michelangelo's seminal fresco painting The Creation of Adam.

Allegra Frank from Polygon lauded the King of All Cosmos as an "all-time great character" and attributed the series' deliriously funny moments to its often sharp writing.

[14] Reflecting on the absurdity surrounding the conceit of pleasing the King's monomaniacal whims, Brendan Main observed that the Katamari series exposes the arbitrary nature inherent in video games, parodying the importance and value society attaches to "inane projects" as well as how beholden individuals are to the goals and rules that bind them.

[20] Shive discussed the King's eccentric behavior and unusual dress sense at length in a retrospective editorial, highlighting in particular the character's bulging crotch as a result of his tightly fitting costume and how later sequels has him wearing less revealing pants.

[5] In an article published by Wired, Lore Sjöberg discussed the King's "disturbing" look in his criticism of the perceived hypocrisy behind Fox News' promotional efforts surrounding the engineered controversy over allegations of obscenity in the 2007 video game Mass Effect.