Showa Nanjakorya is a quiz game that shows the picture of the things that were used in the Showa era, and asks how to use them. These things are nostalgic for the elderly, and fresh for the young. People can play this game with a smart phone or tablet PC at hand, gathering around a large screen such as a television. Players can enjoy unique answer from the young who have no idea of the correct answer, and admire the experiences such as "It has been using like this!" from the elderly. As a tool to produce a positive communication between the elderly and the young, Showa Nanjakorya can be expected to be used in such as welfare facilities, school, and museum.