text: In 2005, longtime guitarist/bassist/keyboardist Fernando von Arb left the band because of continuing wrist problems which required surgery. Mandy Meyer, who had played with the band in the early 1980s, replaced von Arb in the then current line-up. The new formation (Storace, Meyer, Favez, Castell, Stefan Schwarzmann and Dennis Ward) recorded the studio album Hellraiser in 2006, which went to gold in Switzerland on the first day of sales. It generally received very good reviews. In an interview in 2008, Marc Storace stated that Krokus was becoming more and more "metal". Prior to the album's release date, the band already released the ballad "Angel of My Dreams" as a downloadable MP3.
  Reunion with "classic lineup" (2007–2011)
  On 18 November 2007, the lineup featuring Chris von Rohr, Fernando von Arb, Freddy Steady and Marc Storace reunited to play a medley ("Tokyo Nights", "Bedside Radio" and "Heatstrokes") during the TV show, Die grössten Schweizer Hits, on Swiss television. This led to their reunion concert on 2 August 2008 (with the addition of Mark Kohler). Krokus's cover of Sweet's "The Ballroom Blitz" also appeared in the 2007 game Guitar Hero Encore: Rocks the 80s.
  It was announced on 20 April 2008, that the classic lineup of Chris von Rohr, Fernando von Arb, Freddy Steady, Mark Kohler and Marc Storace had reunited, and would be releasing a new studio record in 2010 with a supporting world tour. On 2 August 2008, the band performed live in the Stade de Suisse in Bern. Krokus performed the official anthem of the 2009 Ice Hockey World Championships, hosted by Switzerland. The song was entitled "Live for the Action".