The general sentiment towards Once Upon a Katamari is overwhelmingly positive, with players celebrating the return of a beloved series and appreciating the new gameplay additions and level diversity. While some critical feedback was observed regarding inconsistent physics and multiplayer limitations, the game is generally seen as a well-executed modern continuation of the franchise. The mixed reception of the new power-ups and era theming indicates room for future refinement, but fans of the series continue to express enthusiasm and a deep affection for the title's charming presentation.