Given the question: Information: - A role-playing video game (commonly referred to as role-playing game or RPG, and in the past was also known as computer role-playing game or CRPG) is a video game genre where the player controls the actions of a character (and/or several party members) immersed in some well-defined world. Many role-playing video games have origins in pen-and-paper role-playing games (Including "Dungeons & Dragons") and use much of the same , settings and game mechanics. Other major similarities with pen-and-paper games include developed story-telling and narrative elements, player character development, complexity, as well as replayability and immersion. The electronic medium removes the necessity for a gamemaster and increases combat resolution speed. RPGs have evolved from simple text-based console-window games into visually rich 3D experiences. Since the 1980s, Role-playing is the most commercially viable video game genre in Japan, and has more market share of any other genre in the japanese gaming industry, although in the 2010s first-person shooters and western iOS and Android games were becoming rapidly and increasingly popular in that country. - Galaxian 3 (also known as Galaxian: Project Dragoon) is an arcade game released by Namco in 1990 and its immediate sequel as a scaled-down arcade cabinet in 1994. It is a walk-in style arcade game run upon a hybrid of laserdisc and traditional arcade hardware. It uses multiple Namco System 21 boards with synchronized laserdisc players (up to sixteen boards and players in the original "Galaxian", and two in the "Project Dragoon") to create the pre-rendered backgrounds of the game. Each player shares the same life meter and takes the role of one of many stationary gunner positions (up to sixteen/twenty-eight players for "Galaxian", and six for "Project Dragoon"), who are defending a spaceship against an onslaught of enemy ships. It was one of only two games that were released for Namco's ""Theater 6"" arcade system, the other being its immediate sequel, "Attack of the Zolgear", which was released in 1994. This title was also Namco's first arcade game of the 1990s. - Gungriffon is a series of video games developed by Game Arts and designed by Takeshi Miyaji. "Gungriffon" and "Gungriffon II" originally appeared for the Sega Saturn console in 1996, with more recent appearances in "Gungriffon Blaze" for the PlayStation 2 and "Gungriffon: Allied Strike" for the Xbox. The Gungriffon games are focused on piloting mechalarge, usually bipedal military vehicles. This game series refers to these machines as Armored Walking Gun Systems (AWGS). With the exception of the High-MACS design, the mecha in this series have a distinctly realistic design philosophy. - "Silpheed" is the name of the spacecraft that the player controls. Like many shooter games, the story involves using the Silpheed as Earth's last effort to save itself from destruction by a powerful enemy invasion. The original 1986 PC-88 version used 3D polygonal graphics on top of a tilted third-person backdrop. The 1993 Sega CD version later used pre-rendered computer animation as a full motion video background, a technique previously used by the Namco System 21 arcade game "Galaxian 3" and later the Sega CD version of "Starblade". - The Sega CD, released as the in most regions outside North America, is a CD-ROM accessory for the Sega Genesis video game console designed and produced by Sega as part of the fourth generation of video game consoles. The add-on was released on December 12, 1991 in Japan, October 15, 1992 in North America, and 1993 in Europe. The Sega CD lets the user play CD-based games and adds extra hardware functionality, such as a faster central processing unit and graphic enhancements. It can also play audio CDs and CD+G discs. - An arcade game or coin-op is a coin-operated entertainment machine typically installed in public businesses such as restaurants, bars and amusement arcades. Most arcade games are video games, pinball machines, electro-mechanical games, redemption games or merchandisers. While exact dates are debated, the golden age of arcade video games is usually defined as a period beginning sometime in the late 1970s and ending sometime in the mid-1980s. Excluding a brief resurgence in the early 1990s, the arcade industry subsequently declined in the Western hemisphere as competing home-based video game consoles such as Playstation and Xbox increased in their graphics and game-play capability and decreased in cost. - Voice acting is the art of doing voice-overs or providing voices to represent a character or to provide information to an audience or user. Examples include animated, off-stage, off-screen or non-visible characters in various works, including feature films, dubbed foreign language films, animated short films, television programs, commercials, radio or audio dramas, comedy, video games, puppet shows, amusement rides, audiobooks and documentaries. Voice acting is also done for small handheld audio games. - The Namco System 21 "Polygonizer" is an arcade system board unveiled by Namco in 1988 with the game "Winning Run". It was the first arcade board specifically designed for 3D polygon processing. The hardware went through significant evolution throughout its lifespan until the last game, "Cyber Sled", was released in 1993. It was preceded by the Namco System 2 in 1987 and succeeded by the Namco System 22 in 1993. - Super Smash Bros. Brawl, known in Japan as , is the third installment in the "Super Smash Bros." series of crossover fighting games, developed by an ad hoc development team consisting of Sora, Game Arts, and staff from other developers, and published by Nintendo for the Wii video game console. "Brawl" was announced at a pre-E32005 press conference by Nintendo president and Chief Executive Officer Satoru Iwata. Masahiro Sakurai, director of the previous two games in the series, assumed the role of director for the third installment at the request of Iwata. Game development began in October 2005 with a creative team that included members from several Nintendo and third-party development teams. After delays due to development problems, the game was finally released on January 31, 2008, in Japan; March 9, 2008, in North America; June 26, 2008, in Australia; and June 27, 2008, in Europe. Twenty-seven months after its original Japanese release, the game was released in Korea, on April 29, 2010. - The company has produced a number of games for several genres, beginning with the action game "Thexder" for personal computers in 1985. A number of traditional and Mahjong-related games have also been produced for Japanese audiences. In the Western world, Game Arts is best known as the producers of the "Lunar" and "Grandia" series of role-playing video games, as well as the "Gungriffon" line of strategy games. Some of its staff has helped in the preliminary development of Nintendo's Wii title "Super Smash Bros. Brawl". - Working Designs was an American video game publisher that specialized in the localization of Japanese role-playing video games, strategy video games and top-down shooters for various platforms. Though the company had published many 'cult hits', it was known best to fans as the long-time exclusive US publisher of the "Lunar series". The company was one of the few game publishers that attempted to bridge the cultural gap between the Japanese and American video game industries during the 1990s with an eclectic selection of releases from various genres, and was also one of the earliest American publishers to make use of the CD-ROM format for full, spoken English dialogue in their products at a time when voice acting was not a common feature in most mainstream games. - Silpheed : The Lost Planet is a direct sequel to the Silpheed on the Sega Mega-CD . It was developed by Treasure Co. Ltd and Game Arts , and was published in North America by Working Designs . The game is a vertical scrolling shooter in which the player controls 019 , a Silpheed of the planet Solont 's SA - 77 Squadron , as it takes on countless alien enemies . After reading the paragraphs above, we are interested in knowing the entity with which 'silpheed: the lost planet' exhibits the relationship of 'platform'. Find the answer from the choices below. Choices: - arcade system board - handheld - ios - laserdisc - pc - playstation - playstation 2 - sega saturn - video game console - wii - xbox
The answer is:
playstation 2