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Play Astro Flash (Japan edition · English) Online
Astro Flash
Play Astro Flash online on Master System. Fly the CA-214 through a devastated landscape and into an underground fortress.
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 Astro Flash
Quick start
Press 2 on pad 1 for solo play or pad 2 for alternating two-player play. D-pad moves; 1 stops the weapon-selection letters; 2 fires.
Controls
Press 2 on pad 1 for solo play or pad 2 for alternating two-player play. D-pad moves; 1 stops the weapon-selection letters; 2 fires.
Astro Flash — About this game
Fly the CA-214 through a devastated landscape and into an underground fortress. Destroy weapon carriers to collect capsules, then stop the cycling letters to choose a new weapon. The different forms change your attack pattern, so selecting a useful armament matters as much as avoiding incoming fire. Search for the route below ground and confront Elgramzon at the heart of the enemy base.
Astro Flash 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.