Sony Funbbit f-7
Funbbit plugs in to a portible radio with a headphone jack.
The character is designed to get fat. You must plug it in to the Walkman for it to exercise. Leaving it plugged in seems to keep the weight pretty much level. You can also play a game with him to have him dance and quickly lose weight.
The story is cute and the graphics are very nice.
ThinkWay toys!
I like these.
On the Toy Story one, you can get the alien, a bird or a space puppy.  I always end up with the ailen!  He eats pizza and you need to give him fresh air for the ship.  There are two games and a nice pause feature.
The Mermaid is also nice.   You can get one of four creatures.  Fish, crab, seahorse or jellyfish.
There are nice animations with this large screen.   You play, exercise and nurture this as any other pet too. It's one of my favorites!
Love Chu and Love Chu2

For a short time, I had a pair of Gen1 Love Chus going along with a pair of Love Chu2's.
They are very much alike though the Love Chu2 is a better version. It's as though the company went back and designed the program to run a little better and more logically. The Love Chu2 is more intuitive in the way the game is played.
The game is just a repeat the move game but isn't nearly as obvious in the first generation.
These guys were pretty low maintenance. Just be there when they beep and they are usually pretty happy. Give them a bath after every meal too.  They look so peaceful in the tub!
I did NOT get them to mate. I'm not 100% sure about how that works
Cyber Pet Panda, Dog and Dinosaur.
I was very satisfied with these.  There are many games you can play.
It seemed easy to please and it was just so different!
The primary game is rock paper siscors but you can enter arcade style games too.  Games like car racing, tetris, pinball, Space Invaders and Frogger. Very nice!  The characters were also very nice. It was an interesting and easy going pet.
Heart Tune.
Heart Tune / Haa Chan

Raise a little pet heart! It grows through three heart stages then changes into a cat, angel, demon, and some other mystery characters indicated on the chart. You feed it via a "Heart beam", there's a little heart with wings in the upper left corner of the screen which fires hearts beams at the character.
The play option is to touch it. The heart guy appears on the screen and using the left/right buttons you pet it on it's sides. It sort of smooshes in accordance with the buttons, hitting both buttons squishes both sides in. (squish)
There's the cleaning function which is needed often as the heart likes the place really clean. A whistle calls it back if it decides to wander off (If you neglect it too long, it will leave and not respond to the whistle). But the most interesting thing about this one is when you start it up you also input your age, sex, and blood type. The final option is a "Fortune Telling" feature. It will tell you your lucky color and number for the day.
There are hearts in the sky, flowers and trees on the ground. As your heart is happier, the trees grow taller and the flowers grow. There are also more hearts in the sky the happier the heart is. There are both English and Japanese versions.