It must be because of the type of care your tamagotchi received. Try taking care of it differently next time and you'll probably get a different character.
A memitchi is actually a preety good care character. Look at it this way: when it dies you may find you miss it. Just try to love your tama no madder what it turns into-- you'll have much more fun.
The ghost is Dorotchi. I had him on the last generation. He comes from Average care. Really he's a random character. He/she is pretty nice. No compliants from him. Not much bad things I can say about him/her. To OYAJITCHI you must mate with a Oldie. (Like Ojitchi). After that your tamagotchi baby will skip the CHILD AND TEEN STAGE!!! To get the Oldies make sure your tamagotchi is really old. Like age 16. But there's only 2 Oldies
Ojitchi- You will get him if your tamagotchi is a boy
Mrs. Busy body (matchmaker)- You will get here if your tamagotchi is girl
i wasnt aiming for those, i was hopeing for those. i was hopeing not to get mametchi...and i thought that i wouldnt because there are 52...but i did ;-;