More browsing paths
Play Space Gun (US_EU edition) Online
Spacegun
Play Space Gun online on Master System. Rescue a spaceship’s survivors while shooting alien attackers with a pad or Light Phaser.
Browser play
Sega Master System — EmulatorJS controls
Default Player 1 keyboard mapping. Change keys in Controller Settings.
| Console button | Keyboard |
|---|---|
| ↑ / ↓ / ← / → | ↑ / ↓ / ← / → |
| 1 / START | X |
| 2 | Z |
Open Controller Settings to configure your keyboard or gamepad. Touch controls are available on mobile.
How to Play Space Gun
Quick start
For pad play, connect the pad to port 2 and press 1. For gun play, use Light Phaser in port 1 and pad in port 2; start with the gun trigger. Aim at aliens and spare the crew.
Controls
Pad in port 2: D-pad aims, 1 starts/skips story/fires, 2 cycles special weapons; 1 fires the selected weapon. Gun mode: trigger starts and fires; port-2 pad 2 selects specials, 1 skips story. Select no special weapon to return to normal fire.
Space Gun — About this game
An alien outbreak has overrun human ships and bases. Lead a rescue mission through dark corridors, destroy incoming creatures and protect the crew running toward safety. Rescued people help restore your shields, while special weapons can clear dangerous crowds but also harm nearby survivors. Continuous firing drains weapon charge, so release between bursts to recover strength. Shoot item boxes and then their contents for supplies; route arrows let you choose where to explore. The original game supports a controller or a Light Phaser with a second-port pad.
Space Gun Game manuals
Cheats
No cheats have been added for this edition.
Player verification and sources
Browser play was reviewed before this edition was published in the catalogue. The date below is the catalogue publication date, not the game’s original release date.
- Browser test and catalogue publication date
- Browsers and devices
- PC: Chrome, Edge and Firefox. Mobile: Chrome on Android and Safari on iPhone and iPad.
- Player engine and core
- EmulatorJS 4.3.0-pre · segaMS
- Tested by
- rwEmulator
Sources and editorial basis
rwEmulator reviews edition metadata, release information, game manuals and first-hand browser-play notes. Available manuals are linked below; the editorial policy explains how facts are checked and corrections are handled.