Logo

Play Classic Retro Games Online with Global Netplay

KHOGAMEHUB Retro is a hub for retro game fans who want to play classic NES, SNES and GBA games online.

Search for Mario, Contra, Pokemon, Sonic, Mega...
×
🛠️ Netplay Mode:
Which mode to choose?

💎 Game Engine (State Sync): Best visuals (pixel-perfect). Ideal for fixed-screen games.

⚠️ Note: Movement desync or a black screen may occasionally occur. If this happens, click "Resync Host" below or press F9 to align with the host.


📺 Video Stream (Cloud): Most stable synchronization. Requires a powerful Host PC to encode and stream video.

📺 Frame:
Tap to expand

Initializing memory card...

👥 Netplay

🎮 Open Related Rooms

Finding any related Room...

Comments(0)

Description

Alien Syndrome on the Sega Game Gear drops you into frantic, top-down alien hunting across labyrinthine space stations. You guide a lone commando through timed rescue missions, rescuing hostages while blasting alien hordes, avoiding traps, and facing memorable boss encounters. The compact handheld translation keeps the arcade’s manic pace and unforgiving challenge, with limited lives and tight mazes demanding careful exploration and quick reflexes. Its chunky sprites and bleeps evoke portable 8-bit nostalgia, rewarding pattern memorization and strategic item use. Expect short, intense runs that capture the arcade tension in a portable, classic difficulty package.

Tags: top-down run and gun arcade classic single player boss fight retro shooter classic difficulty fast-paced

🎮 Netplay Guide (Play Online with Friends)

  1. Set your player name
    Before starting, enter your player name so others can recognize you in the room.
  2. Create a room
    Click NetplayCreate Room, then choose a room name.
    It is recommended to name the room after the game you are playing (for example: Super Mario World) so other players can easily find the correct game.
    You may also set a password if you want a private room.
  3. Join a room
    Make sure you open the same game as the host.
    Click Netplay, then select Join Room from the room list and join the desired room.

⚠️ Note: Netplay works best when all players use the same game version and have a stable internet connection.

Controls:

For the best retro experience 🎮, a gamepad is recommended. You can customize controls in the Settings Menu.
Note: Press any button on your gamepad so the emulator can detect it.

🕹️Gamepad compatibility:

  • Xbox-style (XInput): Works best on most browsers and devices.
  • PlayStation DualShock / DualSense: Supported on many games, but button mapping may vary depending on the game, emulator core, browser, and operating system.

🕹️Recommended browsers:

  • Chromium-based browsers (Chrome, Edge, Brave): Best performance and controller support.
  • Safari (macOS / iOS): Good support for Bluetooth controllers.
  • Firefox: Not recommended for gamepad play due to inconsistent controller mapping and limited Gamepad, Sound API behavior.

🕹️How to set up controls:

  • PC (Windows / macOS): Connect your controller → start the game → SettingsControls → map buttons.
  • Android: Pair via Bluetooth or USB-OTG → launch the game → SettingsControls.
  • iOS (Safari): Use a compatible Bluetooth controller → open the game → configure controls in the Settings Menu.

💾 Save & Load Guide

Don't lose your progress! You have two ways to manage your game states:

  • Auto-Save (Browser Storage): By default, your progress is automatically saved to your browser's local storage. You can pick up right where you left off the next time you visit, provided you do not clear your browser cache.
  • Manual Save/Load (Export to File): For maximum safety and playing across different devices, you can export your save data:
    1. Open the Settings Menu in the emulator.
    2. Select "Save State" to download your progress as a file (usually .txt or .state) to your device.
    3. To resume, simply use "Load State" and select that file to continue playing.

⚠️ Note: We highly recommend exporting your save file frequently to avoid losing data due to browser updates or accidental cache clearing.

Played Games

in One FunPak segaGG
in One FunPak
▶️ Play now
Code Name Viper nes
Code Name Viper
▶️ Play now
BC_Racers segaCD
T-Mek sega32x
Star Wars Arcade sega32x
Star Wars Arcade
▶️ Play now
Road Avenger segaCD
Road Avenger
▶️ Play now
Super Kick Off segaGG
Super Kick Off
▶️ Play now
GG Aleste segaGG
Shadow Squadron - Stellar Assault sega32x
Shadow Squadron - Stellar Assault
▶️ Play now
Dungeon Master - Skull Keep segaCD
Dungeon Master - Skull Keep
▶️ Play now
Bubbles arcade
Solatorobo - Sorekara Coda e nds
Solatorobo - Sorekara Coda e
▶️ Play now

Game Recommendations

San Francisco Rush - Extreme Racing n64
San Francisco Rush - Extreme Racing
▶️ Play now
Battleship gb
F-Zero - Maximum Velocity gba
F-Zero - Maximum Velocity
▶️ Play now
Parasol Stars nes
Parasol Stars
▶️ Play now
Dragon Ball Z 2 - Super Battle arcade
Dragon Ball Z 2 - Super Battle
▶️ Play now
Night Warriors arcade
Night Warriors
▶️ Play now
SD Fighters arcade
SD Fighters
▶️ Play now
Foreman for Real snes
Foreman for Real
▶️ Play now
Gunship psx
Beauty and the Beast segaMD
Beauty and the Beast
▶️ Play now
Scurge-Hive gba
Scurge-Hive
▶️ Play now
Wizardry - Inochi no Kusabi nds
Wizardry - Inochi no Kusabi
▶️ Play now
Rampage arcade
Zero 4 Champ RR-Z snes
Zero 4 Champ RR-Z
▶️ Play now
2 Games in 1 - Baerenbrueder + Disneys Prinzessinnen gba
2 Games in 1 - Baerenbrueder + Disneys Prinzessinnen
▶️ Play now
Shadow Master psx
Shadow Master
▶️ Play now
Xexex arcade
NBA in the Zone 99 psx
NBA in the Zone 99
▶️ Play now
👋
Alex just joined the community
Welcome aboard!