Keroro and Fuyuki are on their way home from the toy store - where they bought the latest Gunpla model – when they happen upon a mysterious shrine. Keroro manages to break a strange crystal at the site, but he glues it back together and thinks nothing of the ordeal – that is, until he returns home and finds a strange cross on his face. Soon after, most of Tokyo’s residents also have the same red cross on their faces, granting them the power of telepathy – something that Keroro sees as an opportunity to invade Earth. But what is the true nature of these strange marks, and who is the sinister Kiruru?
Uruno, a failure of a wolf, is currently traveling to find himself a new place to call home; but upon chancing across a rabbit, he attacks it only to realize that this particular rabbit is stronger than any predator! Soon afterwards he discovers that this entire forest he has come across is home to similar 'useless animals' that are atypical of their species. He decides to stick around when he meets his love interest in the form of a clumsy cheetah, and with his new friends, he meets the rest of the animals in the forest, causing much hijinx and fun in the process!
It may seem like a bizarre recommendation to make, but both of these series focus on strange, and somewhat cute creatures. They are also both primarily comedy series and provide a similar sort of humour and entertainment value. If you liked the light relief of this movie, then you may enjoy Damekko Doubutsu.