An infrastructure for an interactive computer program comprising a computer generated environment. The infrastructure comprises an instrument module, a first display and a second display. At least one tangible instrument allows the user to interact within the computer generated environment, at least one virtualized instrument is not accessible to the user. The first display displays images from the computer generated environment. The second display is positioned on one side of the instrument module for displaying at least images of the virtualized instrument(s) and of a virtualized participant that has access to the virtualized participant of the interactive computer program. A method comprising providing the tangible instrument and the first display screen The method also comprises displaying images of the virtualized instrument and the virtualized participant on the second display screen.