* At the end of ''Katamari Forever'', [[spoiler: The King, always so demanding and critical of his son, helps The Prince with defeating Roboking.]]
* The final cutscene of ''We Love Katamari'' has multiple endings, all which show the King doting on his newborn son, the Prince. Highlights include:
** Three of the endings show the King playing peek-a-boo with Prince, playfully tossing Prince in the air, and singing "Rock-a-Bye Baby" to him, respectfully
** The King thanking his son for being born, as the Emperor's approving face appears in the sky above them
** The King trying to comfort a crying Prince, saying that smiling will make him "popular with the ladies"
** In multiple endings, the King hopes that Prince will become big and strong, like the sun
** The King says "This is how [[RoyalWe We]] feel about you, little prince," and presses a button; this causes a picture of Prince's face to appear in the stars, along with a message: [[spoiler: We Love You]].
* The ending credits of the first game, especially due to the lyrics of "Katamari Of Love." The second game provides this with the post-credits, final cutscene depicting the [[spoiler:the newborn Prince with his parents]].