We think about doing little games. After that users have to complete a test to know if there are good ecologist or not. The game consist to finish the three games and after to succeed in the quiz. If you have a good grade you are considered as a good ecologist. In the first game players have to pick up as many trashes as they can before they run out of time. For the second one, players have to put trashes in the good trash the yellow, the green,... After that, there is a third games where players have to switch off the light the faster they can.