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SDI (arcade game)

From Wikipedia, the free encyclopedia

SDI
Developer(s)Sega
Publisher(s)Sega
Activision
Platform(s)
Release1987
Genre(s)Scrolling shooter

SDI - Strategic Defense Initiative, or simply titled SDI and sometimes known as Global Defense, is a 1987 horizontally scrolling shooter produced and released internationally in arcades by Sega. It was later ported to home computers and game consoles, some by other companies. Players control a satellite and must destroy enemies by moving a crosshair over them and firing the satellite's weapons.

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Transcription

Gameplay

Players control a Strategic Defense Initiative satellite orbiting the Earth and must destroy enemy missiles/satellites with its weapons, and when activated the satellite's weapon systems fire at the crosshair present onscreen during play. The arcade version features a joystick to control the satellite and a trackball to control the crosshair. Home computer versions use different control schemes, such as depressing the fire button to control the crosshair, alternating between controlling the satellite and its weapons.[1] It is also possible to use a joystick and mouse in combination to control the satellite and crosshair at the same time, emulating the arcade game's controls.[2]

Each stage is split into two sections: offensive mode and defensive mode. During offensive mode, the player engages a number of enemies with the aim of destroying them all without the satellite being destroyed by the enemy. Should the player destroy all enemies during offensive mode, they are awarded 20,000 bonus points and begin the next stage on the offensive. If any enemies evade destruction during offensive mode, the player must complete defensive mode, where they are tasked with protecting the homeland from incoming warheads. Completion of defensive mode advances the player to the next stage, where they go on the offensive again.

Etymology

The real Strategic Defense Initiative was colloquially known as the Star Wars program and proposed by U.S. President Reagan in 1983 to promote defensive weaponry that could shoot ICBMs out of space.[3]

Reception

In Japan, Game Machine listed SDI on their June 1, 1987 issue as being the sixth most-successful table arcade unit of the month.[4]

References

  1. ^ Hamza, Kati; Evans, Matthew (March 1989). "SDI". Zzap!64. Newsfield Publications Ltd (47): 21.
  2. ^ Rignall, Julian (December 1988). "Reviews - SDI". Computer and Video Games. EMAP (86): 58, 59.
  3. ^ "Reviews - SDI". Crash. Newsfield Publications Ltd (90): 49. July 1991.
  4. ^ "Game Machine's Best Hit Games 25 - テーブル型TVゲーム機 (Table Videos)". Game Machine (in Japanese). No. 309. Amusement Press, Inc. 1 June 1987. p. 21.

External links

This page was last edited on 24 January 2024, at 16:21
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