also became a popular game of the era. Combining all of its sequels and expansions, The Sims easily becomes one of the best-selling PC game in history. The Sims also had an important role in bringing female and casual gamers into the often male-dominated and hardcore video game market. Rhythm game fad Rhythm games were primarily centered in the arcade with popular games such as Dance Dance Revolution and Beatmania. Many of these franchises had been popular since the late-nineties, but it wasn't until Guitar Heros release in 2005 that the genre really impacted on popular culture. Most games in this category will feature a set list of songs that a player can choose to perform. They also generally come with a unique controller, usually shaped like a musical instrument. The success of Guitar Hero lead to the creation of other similar game franchises such as Rock Band and DJ Hero. These games have also been cited as inspiration for people seeking to actually play instruments, and leading to a revival of interest in classic rock nostalgia. In retrospect, rhythm games appear to have been a fad. In late 2011, due to low sale figures, Activision closed its Guitar Hero division. Video games in Africa Since 2007, the fast growing mobile market in African countries such as Nigeria and Kenya has resulted in a growth in mobile game development. Local developers have taken advantage of the recent increase in mobile internet connection in countries where broadband is rarely available and console games are expensive, though locally developed applications have difficulty competing against millions of western applications available on the Google Play Store. This growth has continued through the 2010s as video games are becoming a more viable business on the continent. A decade of controversy As video games approached greater realism in their graphic capabilities, it was inevitable that controversy would result. The evidence was inconclusive, but debates continued throughout the decade about the level of profanity, violence, pornography, and whether or not video games had an addictive effect. One game series in particular that was no stranger to controversy in the 2000s was Grand Theft Auto. In the 2004 San Andreas installment of the series, the game received widespread criticism revolving around the Hot Coffee mod, a normally disabled mini-game that could be enabled. The drama and pressure forced the ESRB to re-rate the game as an AO (Adults