Happy Pets: NEW! Dulok pets inspired by Shrek and Star Wars
As far as the actual pet names go, the Dulok Swamp Ogre and the Princess Ogre are obvious nods to Shrek. The Dulok Swamp Ogre is the most expensive of the four, being 118 Facebook Credits, which is about $12 USD. This is probably because it's a size XL creature. (Note: Happy Pets introduced size as a breedable trait with its Catzilla debut.) The rest of the animals are 88 Credits, or roughly $9 USD each.
Princess Ogre is a size L, which means it's 1.5 times the size of a normal pig. Dulok Donkey (being Shrek's Donkey) and Kitty (a shoo-in for the Puss In Boots cat, voiced by Antonio Banderas) are both a size S, or 75% the size of their normal counterparts.