Action Comics the title back onto a monthly schedule. Writer/artist George Pérez took over the title and was joined by scripter Roger Stern the following month. As writer of the series, Stern contributed to such storylines as "Panic in the Sky" and "The Death of Superman". He created the Eradicator in "Action Comics Annual" #2 and later incorporated the character into the "Reign of the Supermen" story arc beginning in "The Adventures of Superman" #500. The Eradicator then took over "Action Comics" as "the Last Son of Krypton" in issue #687 (June 1993). Stern wrote the 1991 story wherein Clark Kent finally
Cultural impact of the Guitar Hero series the "Guitar Hero" franchise have exceeded one billion dollars with over 16 million units sold, excluding downloadable content. Over 20 million songs have been sold as downloadable content as of July 2008, and 34 million by May 2009. As of October 9, 2008, the series has sold 23 million units with sales of US$1.6 billion, and as of May 2009 has earned US$2 billion at retail. Activision claims that "Guitar Hero" is the third largest video game franchise after the "Mario" and "Madden NFL" series, and is present in over 15 million households. "Guitar Hero: World Tour" along with other