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|designer = Tomohiro Nishikado |released = |genre = Fixed shooter |modes = Single-player, Two-player alternating〔 |platforms = Arcade, Various |arcade system = Taito 8080〔(Taito 8080 Based Hardware ), System 16: The Arcade Museum〕 |cabinet = Upright, cocktail〔 |cpu = 8080 @ 2 MHz〔 |display = Fujitsu MB14241,〔(8080bw ), MAME〕 monochrome raster, vertical orientation, 224×256 resolution〔 |sound = SN76477 @ 1.9968 MHz }} is an arcade video game developed by Tomohiro Nishikado and released in 1978. It was originally manufactured and sold by Taito in Japan, and was later licensed for production in the United States by the Midway division of Bally. ''Space Invaders'' is one of the earliest shooting games and the aim is to defeat waves of aliens with a laser cannon to earn as many points as possible. In designing the game, Nishikado drew inspiration from popular media: ''Breakout'', ''The War of the Worlds'', and ''Star Wars''. To complete it, he had to design custom hardware and development tools. It was one of the forerunners of modern video gaming and helped expand the video game industry from a novelty to a global industry (see golden age of video arcade games). When first released, ''Space Invaders'' was very successful. The game has been the inspiration for other video games, re-released on numerous platforms, and led to several sequels. The 1980 Atari 2600 version quadrupled the system's sales and became the first "killer app" for video game consoles. ''Space Invaders'' has been referenced and parodied in multiple television shows, and been a part of several video game and cultural exhibitions. The pixelated enemy alien has become a pop culture icon, often used as a synecdoche representing video games as a whole. ==Gameplay== ''Space Invaders'' is a two-dimensional fixed shooter game in which the player controls a laser cannon by moving it horizontally across the bottom of the screen and firing at descending aliens. The aim is to defeat five rows of eleven aliens—some versions feature different numbers—that move horizontally back and forth across the screen as they advance towards the bottom of the screen. The player defeats an alien, and earns points, by shooting it with the laser cannon. As more aliens are defeated, the aliens' movement and the game's music both speed up. Defeating the aliens brings another wave that is more difficult, a loop which can continue without end.〔 The aliens attempt to destroy the cannon by firing at it while they approach the bottom of the screen. If they reach the bottom, the alien invasion is successful and the game ends. A special "mystery ship" will occasionally move across the top of the screen and award bonus points if destroyed. The laser cannon is partially protected by several stationary defense bunkers—the number varies by version—that are gradually destroyed by a numerous amount of blasts from the aliens or player.〔〔〔〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Space Invaders」の詳細全文を読む スポンサード リンク
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