According to the ESRB, this game contains: Fantasy Violence
Parents have very little to worry about with We Love Katamari. There's no sex or nudity, and its inimitable "violence" consists of rolling up parrots, cows and elephants with a giant sticky ball. The most objectionable content that I found is that one of the King's fans calls him "sexy." Oh—and the King's not a very good father, either.
Highly sensitive youngsters might be disturbed by Japanese schoolgirls screaming as the katamari rolls over them, but in general, this game is too absurd to take seriously.
Fans of quirky niche games will enjoy the heck out of this title. If you're tired of saving princesses, blasting aliens and eyeing your stats in midieval wonderland, We Love Katamari is for you. It even has a great tutorial level, for players new to the series.
Fans of the original Katamari Damacy know exactly what to expect. The gameplay isn't mind-blowing this time around, but it's still as fun as ever and there are a few additions (like having to keep a katamari-campfire moving and out of the water).
Deaf and hard of hearing gamers will miss out on the title's great music; still, dialogue and instructions are in full text and there are no significant auditory cues.