The development of interactive, participatory, multisensory environments that combine the physical with the virtual comes as a natural continuation to the computer game industry's constant race for more exciting user experiences. Specialized theme parks and various other leisure and entertainment centers worldwide are embracing the interactive promise that games have made users expect. This is not a trend limited to the entertainment domain;non-formal learning environments for children are also following this path, backed up by a theoretical notion of play as a core activity in a child's