for the arcade version, and the Wii Games. Sale to Activision and development by Neversoft (2006–2009) Both RedOctane and Harmonix experienced changes in 2006. RedOctane was bought by Activision in June — who spent US$100 million to acquire the Guitar Hero franchise — while it was announced in October that Harmonix would be purchased by MTV Games. As a result of the two purchases, Harmonix would no longer develop future games in the Guitar Hero series. Instead, that responsibility would go to Neversoft, a subsidiary of Activision known for developing the Tony Hawk's series of skateboarding games. Neversoft was chosen to helm the Guitar Hero series after Neversoft founder, Joel Jewett, admitted to the RedOctane founders, Kai and Charles Huang, that his development team for Tony Hawk's Project 8 went to work on weekends just to play Guitar Hero. Activision CEO Bobby Kotick believed that Neversoft would help them bring great games to the series, but on reflection, stated that had Activision explored Harmonix further as a continued developer for the series, things "may have turned out differently". In addition, Activision began seeking other markets for the game; a Nintendo DS version of the series was developed by Vicarious Visions, while a Guitar Hero Mobile series was created for mobile phones. The company also began considering the expansion of the series to band-specific titles with Guitar Hero: Aerosmith. Later, in November 2008, Activision acquired Budcat Creations, another development studio that had helped with the PlayStation 2 versions of Guitar Hero III and World Tour, announcing that they would be helping to develop another game in the Guitar Hero series. In 2007, Harmonix and MTV Games released a new music title through rival publisher Electronic Arts, called Rock Band. It expanded upon the gameplay popularized by the Guitar Hero series by adding drum and microphone instruments, allowing players to simulate playing songs as bands. Activision followed suit with the release of Guitar Hero World Tour in 2008, which supported multiple instruments. In 2009, Activision tripled its Guitar Hero offerings, and in addition to further continuation of the existing main series with Guitar Hero 5 and expansions, they introduced the titles Band Hero, geared towards more family-friendly pop music, and DJ Hero, a game based on turntablism and featuring a number of mixes. With the release of Guitar Hero 5, Activision considered the series to have moved away from its heavy metal