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Play Galactic Protector (Japan edition · English) Online
Galactic Protector
Play Galactic Protector online on Master System. Circle planets with a paddle-controlled ship and blast incoming meteorites.
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 Galactic Protector
Quick start
Use a Paddle Control. Press its button on controller 1 for solo play, or controller 2 for two players. Turn the knob to line up with an approaching meteorite and fire before it reaches the planet.
Controls
Paddle knob: move the ship around the planet. Paddle button: start and fire a beam. Controller 1 starts solo; controller 2 starts simultaneous two-player play.
Galactic Protector — About this game
Galactic Protector sends Opa-Opa and Upa-Upa to defend Earth, Saturn and Jupiter from meteorites. Your ship travels around the planet rather than freely across the screen, so the paddle determines which approach you can intercept. Fire inward along the incoming paths and watch threats from every direction. Both the ships and the planet need protection: losing all ships or exhausting the planet’s damage counter ends the game. A second paddle allows two players to defend together.
Galactic Protector 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.