This application is a game that allows you to simulate the life of a hedgehog: its search for food, a mate, etc. The game is played in 7 rounds which represent 7 years of its life. It must move around to find food and increase its weight to reach a minimum weight before its hibernation period. If he reaches a weight of 1 kg at the end of the 7th year, the game is won. The application works with the hedgehog robot Robert.