“Zang Tumb Tumb” is an interactive game that allows visitors to live a synaesthetic experience. Users are invited to jump, to shout, to touch. The aim of the game is to interact with the environment. This experience is individual and collective at the same time because every action changes the space shared by everyone.The project takes place in the courtyard of “Università Statale di Milano” during the event “Fuorisalone” by Interni.