A free program for Android, by Frojo Apps.

Moy is a cute little slime that you must take care of. Moy will be your friend and you can dress him up in different cool and cute outfits. You feed and take care of him, so he becomes healthy. Spend quality time with Moy by playing the piano or mini games, strengthening the bond between you and him. He can be your friend and your little pet.

Moy is easy to get along with, too. Overall, Moy – Virtual Pet Game is a great way to learn how to take care of a virtual pet before buying a real one.