A blob of slime that hatches from an egg, becoming another living being as it grows up. As the user interact with it, the blob would grow and gain colours as a sign of learning emotions.
Growing up/ learn about different human emotion and then gainning color in life
It has no idea how to gain emotion by itself. It needs the interaction between the user and it to be able to do so.
User interacting with it will help it to gain experience in life. Leaving it alone would make it sad/lonely.
Good end : It successful learn about human emotions. It's world became colorful.
Bad end: The user got bored with the game, the character was left alone for quite a long time. It got lonely and slowly it's world loses colour.