I kept it in its case after playing. Includes the official Nintendo strategy guide. The strategy guide is half photos & breed explanations, and half strategy information, so I think it can also be viewed as a photo album. The following is automatically entered: Popular game "nintendogs + cats" for Nintendo 3DS, Japanese version, with strategy guide - Product Name: nintendogs + cats - Platform: Nintendo 3DS - CERO Rating: A - Language: Japanese - Bonus: Included booklet Thank you for viewing.