According to ESRB, this game contains: Suggestive Themes, Violence
Parents should be aware that Cubivore has unexpected doses of sexual innuendo. It's nothing explicit, but children might ask some questions about certain comments or mating in the game. (The events here are a polygamist's dream.) Besides that, eating other animals and the accompanying squeals of pain might not be appropriate for some young ones.
Pokémon fans who like oddball critters and collecting large numbers of them might find some redeeming qualities in Cubivore. With 150 different ones to earn, it will take a good amount of time and thinking before you can say you "Caught 'Em All." The game is also pretty cute if you don't mind geometrical shapes instead of a fuzzy Pikachu.
Fans of intense weirdness will want to check out Cubivore. It's not quite as good as Enix's E.V.O., but it's leagues better than ArtDink's Tail Of The Sun. It shares the same sort of loose, freeform, nature-worshipping vibe as those two games and if you thought either of them was remotely cool, this will be right up your alley.
Hearing impaired gamers will have no problems here. There are no significant auditory cues and all information is presented with text.