The article describes an evaluation of a prototype for doing game-based interactive advertisement campaigns in crowded public spaces using motion-sensing technology. The prototype was developed using OpenNi, XNA and Kinect, in which people who pass by a large display would be reflected on a large screen in the form of a silhouette and automatically become a part of a game. The goal of the game is for the players to gather falling objects into a container using the body to direct the objects. The objects move around when the objects collide with the silhouette of the player. The graphical representation of the falling objects and the container can be changed to fit various advertisement purposes.The game-based interactive campaign was tested at four different public locations, and was evaluated through observations and questionnaires. Our findings suggest that there is a potential for using motion control in game-based interactive campaigns in public settings. The game attracted a good amount of attention, and seemed to tempt the curiosity of passers-by. An observed trend was that participants were comfortable playing in public and got easily engaged. Children and adolescents in groups were by far the most active participants.