More browsing paths
Play Alien Storm (EU_BR edition · English) Online
Alien Storm
Play Alien Storm online on Master System. Fight an alien invasion across street battles, shooting galleries and running stages.
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 Alien Storm
Quick start
Press 1 or 2, choose Gordon or Slammer, then Normal or Hard. Start on Normal and learn the forward flip before spending special energy.
Controls
Pad: move or aim. 1: attack; hold in shooting sections for repeated fire. 2: forward flip in street battles, jump in running stages, fire in shooting sections. 1+2: special attack outside shooting sections. Either button starts/confirms.
Alien Storm — About this game
Choose Gordon or Slammer for a solo fight through four missions. Street battles let you move around enemies, shooting sections replace movement with a crosshair, and fast-scrolling stages demand attacks on the run. Life and special-attack energy are separate resources. A powerful special can clear a dangerous crowd, but you need enough energy to use it.
Alien Storm 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.