These are all the same style and type pets.
I figured it was time to start grouping the pets in to families of pets. Pest that are very similar in the way they are played.
Pocket Pals. These Dinkie style pets change their characters every day.
Riku Riku chan Hitorikko Chicken and Tako-Seijin.
I have not played with the Riku Riku Chan but it's a Dinkie.
As you can see from the Chicken, there are a couple more creatures in the Hitorikko series. Dog, Dino and fish!
While the Hitorikko is NOT truly a Dinkie, it runs on a very similar chip and uses a similar menu. The Hitorikko is a little easier to take care of. :0)