This project by Troika is the result of the comission of Warner Music. The company, in coordination, with the Streets wanted short messages to be projected onto the audiance during one of the gigs of the band. Messages were written by the Streets lead singer Mike Skinner, and included cool phrases like ‘too much booze in his bladder’. According to the experience of Warner Bros Employee in the webpage of Troika, the crowd had much fun and some even asked where to buy one. So much for history. Visualizationa for concert performances have gone to the way of digital screens these days. Whether in syncronization with the music or not, they provide the same result: some imagery displayed on unmoving digital screens, which accompany almost every other concert on earth. Contrary to that, Troika’s product with projection, is not involved with the performance. Someone lurks in every imaginable corner , hides in every corner, relocates constantly and haunts the audiance with short messages. The response from people is; “Where can I buy one then?”. This breaks the tradition of music performance visualization in two ways; Firstly, it challenges the people from the audience to watch and interact with each other. Secondly it has no computational pattern.; so, in this design project, the band and its music is not in the focus, the audiance is as well. One can argue that the aim of the music performance is to augment the experience of the performance itself, not to shift the attention to the people, who are acttually “unimportant”. Well , as far as the performances of contemporary rappers are concerned, who says the crowd there should be unimportant? Maybe the fun should be more collectivized? The issues above being the case, the design product is a very succesful one. The experience of the SMS Guerilla Projector might had only one flaw. If some people among the audiance would be annoyed with photographs being taken while short messages projected onto them, having annoying content. And there would not be many people like that. Also,SMS Guerilla Projector was done for the Streets. Why not include the guy too?