The goal was to make a tamagotchi with personality traits. It had to be an immersive story for children to have a companion during elementary school. The idea was that as the child grows over the years so does Semmy. Increasing the difficulty and adding new math problems as the child gets older.

We invented Semmy the racoon. He is open to experience, extrovert, agreeable and confident. His story was that he got lost and had to get back to his family on the “tree mountain”, but his obstacle was he has to get passed all kinds of mathematical problems. 

 You can read the whole documentation here.