Grosskopf's playing style has been known to include prominent basslines, and occasionally he has a solo such as in "Heavy Metal (Is The Law)" or "Eagle Fly Free", which is one of his most famous.
His playing style expanded on one of Helloween's more recent albums Keeper of the Seven Keys - The Legacy, where many more bass solos and lead parts are heard, like "Invisible Man", "Light the Universe" and even some slap bass on the first single "Mrs.