Andy Weller of the Necros recalls the band's transition from traditional punk rock in the late 1970s to hardcore in the early 1980s: "(You) could hear it on the records. It went from this Ramones-type stuff, to nine months later, where they put out records that were so fast it's unreal." By the recording of "Earth A.D./Wolfs Blood" the band were playing faster, more aggressive material. According to Blush, "The Misfits' strengths as a hardcore group lay in non- attributes–melodic songs and larger-than-life-aura–but by the time of "Earth AD" Glenn was writing hyperspeed blasts that sounded very standard."