passengers' attitudes and the environment of the game. Setting Through the series, the cities used within the Crazy Taxi games have been influenced by real-world cities, including San Francisco, Los Angeles, New York City, and Las Vegas. Certain versions of the Crazy Taxi game include in-game counterparts of real-world businesses, including Pizza Hut, Kentucky Fried Chicken, FILA, and Tower Records; these were often destination targets for the passengers. Although this is one of the most prominent examples of product placement in video gaming history, it is generally looked upon relatively favorably amongst gamers, perhaps because it gives a sense of realism to the fictional cities in the game. These establishments have been replaced with generic businesses in later games due to licensing difficulties. Soundtrack The soundtrack of the Crazy Taxi series has typically been licensed hard rock and punk rock music. The arcade and initial home console versions include selections from punk rock bands The Offspring and Bad Religion, though these have been removed in both the Game Boy Advance and the PlayStation Portable remakes because of licensing issues. In the case of the Game Boy Advance Catch a Ride, the game uses instrumental music instead of recorded songs. Legalities Sega applied for and was awarded U.S. Patent 6,200,138 – "Game display method, moving direction indicating method, game apparatus and drive simulating apparatus" – in 2001. The mechanics in the "138 patent" describe an arcade cabinet similar to Sega's previous arcade game Harley-Davidson & L.A. Riders (1997), but also describe the arrow navigation system and pedestrian avoidance aspects that were used in Crazy Taxi. During 2001, Electronic Arts and Fox Interactive released The Simpsons: Road Rage, which has been labelled a rip-off of the Crazy Taxi game engine by game reviewers. In this game, the player controlled one of The Simpsons characters as they drive around Springfield, bringing passengers to these destinations in a way like in Crazy Taxi. So therefore, Sega brought Fox Entertainment, Electronic Arts, and developer Radical Games Ltd. to court over this infringement of the 138 patent. The case, Sega of America, Inc. v. Fox Interactive, et al., was settled in private for an unknown amount. The 138 patent is considered to be one of the most important patents in video game development. Games Crazy Taxi (arcade) The arcade version of Crazy Taxi was released in February of 1999, and featured only the San Francisco-inspired map