Mika Nanakawa (Japanese: 七川 美華, Hepburn: Nanakawa Mika), known as Rainbow Mika (レインボー ミカ, Reinbō Mika) and more commonly as R. Mika (アール・ミカ, Āru Mika), is a fictional character and professional wrestler from Capcom's Street Fighter fighting game series. Here performing a head butt.