Alien Syndrome box art for Sega Master System
Alien Syndrome screenshot 3 for Sega Master System
Alien Syndrome screenshot 4 for Sega Master System
Alien Syndrome screenshot 5 for Sega Master System
Alien Syndrome title screen for Sega Master System
Alien Syndrome logo for Sega Master System
Sega Master System system logo
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Alien Syndrome

Alien Syndrome

↘ 33%
🙂 6.5/10
(Sega Master System - PAL, Action & Adventure)
🇪🇺
PAL
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JP
🇺🇸
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Sega Master System logo
Developed_By:
Sanritsu
Published_By:
Tec Toy
Released On:
18 Oct 1987
Alien Syndrome is based on the arcade version, with some distinct changes made to the level layouts and gameplay mechanics. The game now features a flip screen, causing enemies to appear in the same location when entering new areas. Hazardous tiles have also been added, which will kill the player if stepped on, and can be temporarily disabled by shooting them.
The game is played as one of two characters, Ricky or Mary, who take turns navigating through the levels. The players must avoid enemies and hazards while trying to reach the end of each stage. The gameplay requires quick reflexes and strategic thinking to overcome obstacles and defeat enemies.
EAN-13:
4974365634063 (France)
Sega Region Code:
7006 (France)
Sega Region Code:
MK-7006-50 (France)
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Media Type:
Mega Cartridge
Multiplayer Options:
Hot Seat
Sound Devices Supported:
YM2413
Number of Players Supported:
1-2 Players
Prices as of 19 Sep 2026
Typical $27.52–$34.89 (last 90 days)
20222023202420252026010203040500102030VolumeComplete: $27.52Loose: $11.41
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