Alien Syndrome

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Alien Syndrome
Alien Syndrome Cover.png
Arcade flyer for Alien Syndrome
Developer(s) Sega
Publisher(s) Sega
Composer(s) Tohru Nakabayashi
Platform(s) Arcade, Amiga, Atari ST, Commodore 64, Game Gear, MS-DOS, MSX, NES, Sega Master System, ZX Spectrum, Sharp X68000
Release 1987 (Arcade)
1988 (Sega Master System, Amiga, Atari ST, Commodore 64, Famicom, MSX, NES)
1989 (ZX Spectrum, MS-DOS)
1992 (Game Gear, Sharp X68000)
Genre(s) Run & gun shooter
Mode(s) Single-player, multiplayer
Cabinet Upright
Arcade system Sega System 16A / B
CPU 68000
Sound N775, YM2151, uPD7759
Display Horizontal orientation, raster: standard resolution (Used: 320 x 224)

Alien Syndrome (エイリアンシンドローム, Eirian Shindorōmu) is a run & gun shooter arcade game developed by Sega and released in 1987.


Screenshot of Alien Syndrome

Two players control two soldiers, named Ricky and Mary, who fight their way through large eight-way scrolling levels while rescuing their comrades who are being held by aliens. After they have rescued a certain number of hostages, the exit opens and they can pass through it in order to fight the end-of-level guardian. If this monstrosity is defeated, they are then able to move onto the next stage. Alien Syndrome features two player simultaneous gameplay and pickups which assist the player, including better weapons and maps of the current level.


In 1988, the game was ported to the Sega Master System, MSX, Amiga, Atari ST, Amstrad CPC, Commodore 64, and Famicom/Nintendo Entertainment System (published by Tengen). Later, the game was ported to the ZX Spectrum (1989) Sega Game Gear (1992) and Sharp X68000 (1992), the latter being the only arcade perfect port.

The game was also converted to polygonal graphics for the PS2 as part of the Sega Ages re-release program and included in the US version of the Sega Classics Collection (it was removed from the European version to receive a lower age certificate). This version has updated controls, adding the use of both analog sticks, similar to that seen in Sheriff, Robotron: 2084 and Smash TV. The original arcade game was also included as an unlockable in Sonic's Ultimate Genesis Collection.

A sequel of the same name, Alien Syndrome, was released for Wii and PSP on July 24, 2007.


The original arcade version of the game was reviewed in the July 1987 issue of Computer and Video Games, where Clare Edgeley described it as "one of the most gripping games" she "played in months", praising the Aliens like horror atmosphere, chilling sounds, special effects, graphics and gameplay. She stated it was "the first time the atmosphere and sheer addictiveness of a shoot 'em up has transported me to another planet" and concluded that it "is fantastic."[1]

The Sega Master System version of the game was reviewed in 1989 in Dragon, getting 2 out of 5 stars.[2]

See also[edit]


  1. ^ "Alien Syndrome arcade game review". 
  2. ^ Lesser, Hartley; Lesser, Patricia; Lesser, Kirk (January 1989). "The Role of Computers". Dragon (141): 72–78. 

External links[edit]