 Often characterized as a mere clone of Stryper (another more prominent Christian metal band popular at the time), Stryken issued several releases on their own private label, Crystal Records, including the 1986 12" single with the tracks, "Rock On" and "Surprise", and the 1987 full-length album, "First Strike" (which has since been reissued with previously unreleased material).The band's lyrics made prominent use of Biblical verses such as the anthemic song, "Crush the Head of Satan", which was a reference to the Old Testament prophetical verse of Genesis 3