Please answer the following question: Information:  - Guitar Hero Encore : Rocks the 80s ( titled Guitar Hero : Rocks the 80s in Europe ) is a music rhythm game and the third installment in the popular Guitar Hero series . It was released in July 2007 in North America and Europe , and in August 2007 in Australia . Players use a guitar - shaped controller ( purchased separately ) to simulate playing rock music by hitting notes as they scroll towards the player . Rocks the 80s is an incremental title in the Guitar Hero series , rather than a full sequel . No changes in gameplay from Guitar Hero II have been introduced to this game . As implied by the game 's title , the game features a 1980s theme , consisting of songs from the decade and playable characters , fashions , and artwork that reflect the time period . The game was not as well - received as the prior two Guitar Hero games , due to the lack of new gameplay features and reduced soundtrack . Rocks the 80s is the third and final title in the Guitar Hero series to be developed by Harmonix before they moved on to create Rock Band . The next major installment of the series , Guitar Hero III : Legends of Rock , was developed by Activision 's Neversoft division .  - A game controller is a device used with games or entertainment systems to provide input to a video game, typically to control an object or character in the game. A controller is usually connected to a game console or computer by means of a wire or cord, although, since the mid-2000s, wireless controllers have become widespread. Input devices that have been classified as game controllers include keyboards, mouses, gamepads, joysticks, etc. Special purpose devices, such as steering wheels for driving games and light guns for shooting games, are also game controllers.  - A musical ensemble, also known as a music group or musical group, is a group of people who perform instrumental and/or vocal music, with the ensemble typically known by a distinct name. Some music ensembles consist solely of instruments, such as the jazz quartet or the orchestra. Some music ensembles consist solely of singers, such as choirs and doo wop groups. In both popular music and classical music, there are ensembles in which both instrumentalists and singers perform, such as the rock band or the Baroque chamber group for basso continuo (harpsichord and cello) and one or more singers. In classical music, trios or quartets either blend the sounds of musical instrument families (such as piano, strings, and wind instruments) or group together instruments from the same instrument family, such as string ensembles (e.g., string quartet) or wind ensembles (e.g., wind quintet). Some ensembles blend the sounds of a variety of instrument families, such as the orchestra, which uses a string section, brass instruments, woodwinds and percussion instruments, or the concert band, which uses brass, woodwinds and percussion.   - Rhythm game or rhythm action is a genre of music-themed action video game that challenges a player's sense of rhythm. Games in the genre typically focus on dance or the simulated performance of musical instruments, and require players to press buttons in a sequence dictated on the screen. Doing so causes the game's protagonist or avatar to dance or to play their instrument correctly, which increases the player's score. Many rhythm games include multiplayer modes in which players compete for the highest score or cooperate as a simulated musical ensemble. While conventional control pads may be used as input devices, rhythm games often feature novel game controllers that emulate musical instruments. Certain dance-based games require the player to physically dance on a mat, with pressure-sensitive pads acting as the input device.    What is the relationship between 'guitar hero encore: rocks the 80s' and 'video game'?
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instance of