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Catalogue of Arcade Emulation Software - the Absolute Reference

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Alien Syndrome (set 4, System 16B, unprotected)


Alien Syndrome (c) 01/1987 Sega.


The earth command faces a grave crisis. Hideous alien life forms have taken control of Earth's space station and hold its inhabitants hostage. Only two brave space troopers step forward to face the challenge. Ricky & Mary must save the hostages and destroy the alien menace once and for all. This overhead shoot'em up game features good graphics & sound as well as simple yet fast gameplay with plenty of weapons to find!


- TECHNICAL -


Alien Syndrome was sold in a dedicated cabinet by Sega, but was also sold as a conversion kit by Sun Corporation (licensed from Sega) for the America market only.


Cabinet dimensions : 32,5'' (83cm) Deep x 24'' (63cm) Wide x 73'' (185cm) High.

Cabinet weight : 211 lbs (96 kg).


Sega System 16A hardware


Main CPU : 68000 (@ 10 Mhz)

Sound CPU : Z80 (@ 4 Mhz), N7751 (@ 400 Khz)

Sound Chips : YM2151 (@ 4 Mhz), UPD7759 (@ 640 Khz)


Screen orientation : Horizontal (19'')

Video resolution : 320 x 224 pixels

Screen refresh : 60.00 Hz

Palette colors : 6144


Players : 2

Control : 8-way joystick

Buttons : 1


Note : this game also runs on Sega System 16B hardware.


- TRIVIA -


Donn Nauert holds the record for this game with 2,269,200 points on February 2, 1988.


Alfa Records released a limited-edition soundtrack album for this game (Sega Game Music Vol.3 - 28XA-109) on 10/10/1987.


- TIPS AND TRICKS -


* Hint : Shoot and grab everything as quickly as possible. If you manage to finish a level before the timer reaches 100, you get a 60K bonus.


- STAFF -


Music by : Tohru Nakabayashi


- PORTS -


* Consoles :

Sega Master System (1987)

Nintendo Famicom (1988)

Sega Game Gear (1992)

Sony PlayStation 2 (2004, "Sega Ages 2500 Vol. 14 : Alien Syndrome")


* Computers :

Amstrad CPC (1987)

Commodore Amiga (1987)

Atari ST (1987)

Sinclair ZX Spectrum (1988)

Commodore C64 (1988)

Sharp X68000 (1992)

PC [MS-DOS, 5.25'']