For those who missed it the first time, you've got a second chance. Not only that, but this time, they're cheaper! Let's look at the original prices compared to the new ones: Cowboy Cat and Space Ranger Cat were 90 Facebook Credits ($9 USD), now they're 70 FB Credits ($7 USD). Alien Guinea Pig dropped from 90 FB Credits to 64 FB Credits ($6.40 USD). Cowboy Horse went from 80 to 62 ($6.20 USD). Spring Dog dropped from 80 to 50. And Bacon Pig fell from 70 to 50.
Right now, it seems everyone's in love with Bacon Pig since that's selling the strongest. As a reminder, the special thing about these pets is that they're smaller than normal. This means that they're roughly the same size as the Microcat, and if you breed them, the offspring might inherit the 'micro' gene. You can check out the bottom of the Catzilla blog post for a size comparison.