SMS
Alien Syndrome
Also known as: 异形综合症, Αλιν Σινντρομ, Алин Синдром, 異形综合症, エイリアン シンドローム, 에이리언 신드롬, الين سيندروم
- Platform
- Master System
- Genre
- Shooter
- Year
- 1987
- Developer
- Sega
- Publisher
- Sega
EmuAll provides verified clean ROM archives and in-browser emulation for Alien Syndrome (SMS). Players can launch and play directly inside modern desktop and mobile browsers with zero local installation, full gamepad support, and instant save states.
ROM downloads
1Alien Syndrome (USA, Europe)
Recommended Emulators(SMS)
If you choose to download this ROM to play offline, we recommend these top standalone emulators:
About the Game
Alien Syndrome is a top-down run-and-gun shooter where players combat hordes of alien invaders across multiple planets. The game features fast-paced action with rapid weapon fire, power-ups, and destructible environments that add strategic depth to combat encounters. Players can choose between two different characters, each with unique abilities and weapon handling. The game's arcade-style gameplay emphasizes pure action over complexity, making it accessible while remaining challenging.
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Frequently Asked Questions
Q1.Can I play Alien Syndrome online in a web browser without downloading?
Yes, EmuAll allows you to play Alien Syndrome (SMS) directly inside modern web browsers (Chrome, Safari, Edge, Firefox) on PC, Mac, Chromebook, iOS, and Android devices without installing any emulator.
Q2.Does Alien Syndrome support in-browser save states?
Yes, the in-browser emulator features instant Save States and Load States, storing your game progress directly in your browser storage so you can pick up where you left off.
Q3.What controls are supported? Can I use a controller for Alien Syndrome?
The emulator fully supports standard keyboard controls as well as plug-and-play USB and Bluetooth gamepads (including Xbox, PlayStation, and generic controllers).