Nintendo designed the Wii to be a console for innovative gameplay rather than high performance, and created the Wii Remote, a motion detection-based controller. Gameplay designed around the Wii Remote provided instant hits, such as Wii Sports, Wii Sports Resort, and Wii Fit, and the Wii became one of the fastest selling consoles in its few years. The success of the Wii's motion controls partially led to Microsoft and Sony to develop their own motion-sensing control systems, the Kinect and the PlayStation Move. A major fad in 2000s was the rapid rise and fall of rhythm games which use special game controllers shaped like musical instruments such as guitars and drums to match notes while playing licensed songs. Guitar Hero, based on the arcade game Guitar Freaks, was developed by Harmonix and published by Red Octane in 2005 on the PS2, and was a modest success. Activision acquired Red Octane and gained the publishing rights to the series, while Harmonix was purchased by Viacom, where they launched Rock Band, a similar series but adding in drums and vocals atop guitars. Rhythm games because a highly-popular property second only to action games, representing 18% of the video game market in 2008, and drew other publishers to the area as well. While Harmonix approached the series by adding new songs as downloadable content, Activision focused on releasing new games year after year in the Guitar Hero series; by 2009, they had six different Guitar Hero-related games planned for the year. The saturation of the market, in addition to the fad of these instrument controllers, quickly caused the market in 2008 to fall by 50% in 2009. By 2011, Activision had stopped publishing Guitar Hero games (though returned one time in 2015 with Guitar Hero Live), while Harmonix has continued to develop Rock Back after a hiatus between 2013 and 2015. Nintendo still dominated the handheld games market during this period. The Game Boy Advance, released in 2001, maintained Nintendo's market position with a high-resolution, full-color LCD screen and 32-bit processor allowing ports of SNES games and simpler companions to N64 and GameCube games. The next two major handhelds, the Nintendo DS and Sony's PlayStation Portable (PSP) within a month of each other in 2004. While the PSP boasted superior graphics and power, following a trend established since the mid-1980s, Nintendo gambled on a lower-power design but featuring a novel control interface. The