 Multi-instrumentalists, My Cat Is An Alien primarily play electric and acoustic guitars, various toy instruments (so-called 'space toys'), modified electronics ('alientronics') and a wide set of percussion.Roberto Opalio's personal use of wordless vocalizations adds human voice as a further instrument in the list.It seems like My Cat Is An Alien's shamanic-like live performances are kind of rare; during the years they apparently showed up only at selected special events, and some of the most prestigious international festivals of avant garde and experimental music