While they may just be recolors of the various battle droid pets, if you are here because you collect pets, that really doesn’t matter.

Anyway, there are 5 pets:
Battlefield Heroes
Lord of Ultima
Command and Conquer Tiberium Alliances
Battlefield Play4Free
Need for Speed World

You must register and play each one (I am not sure for how long).

I will be adding them up to the pet lists shortly.

At this rate, I wouldn’t be surprised if there was for Origin, itself.

Please keep in mind you only have until April 1st, though.