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

Marvin Strikes Back! delivers a compact, old-school handheld experience built around tight action and reflex-driven stage design. On the Game Boy, the game leans into short, memorable levels filled with hazards, enemy encounters and punchy bosses that test timing and pattern recognition. Its pixel art and chiptune soundtrack capture the portable nostalgia of the era, while difficulty ramps steadily to keep players engaged. Expect trial-and-error moments, satisfying retries, and a focused single-player run that rewards patience and mastery across its bite-sized but challenging campaign.

Tags: action platformer side scrolling boss fight single player classic difficulty

🎮 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

Crafting Mama nds
Crafting Mama
▶️ Play now
Metal Black arcade
Metal Black
▶️ Play now
Nichibutsu Arcade Classics 2 snes
Nichibutsu Arcade Classics 2
▶️ Play now
Top Racer 1 snes
Top Racer 1
▶️ Play now
Galerians (US) - CD2 psx
Galerians (US) - CD2
▶️ Play now
Elmo's ABCs gb
Elmo's ABCs
▶️ Play now
James Bond 2 segaMS
James Bond 2
▶️ Play now
Hotdog Storm arcade
Hotdog Storm
▶️ Play now
Top Player's Golf arcade
Top Player's Golf
▶️ Play now
Whip Rush segaMD
Ultra X Weapons arcade
Ultra X Weapons
▶️ Play now
Tsukikomori snes
Tsukikomori
▶️ Play now

Game Recommendations

Beavis and Butt-Head segaGG
Beavis and Butt-Head
▶️ Play now
NASCAR Challenge gb
NASCAR Challenge
▶️ Play now
Dragon Saber arcade
Dragon Saber
▶️ Play now
F1 - World Championship Edition segaGG
F1 - World Championship Edition
▶️ Play now
Final Fantasy Chronicles - Chrono Trigger psx
Final Fantasy Chronicles - Chrono Trigger
▶️ Play now
Dragon Ball Z - Buu's Fury gba
Dragon Ball Z - Buu's Fury
▶️ Play now
NBA Shoot Out psx
NBA Shoot Out
▶️ Play now
Warrior of Rome segaMD
Warrior of Rome
▶️ Play now
Pokemon - Versione Rosso Fuoco gba
Pokemon - Versione Rosso Fuoco
▶️ Play now
Gunbird 2 arcade
Congo Bongo arcade
Congo Bongo
▶️ Play now
Metal Beyblade - Cyber Pegasis nds
Metal Beyblade - Cyber Pegasis
▶️ Play now
Wagyan Land segaGG
Wagyan Land
▶️ Play now
Looney Tunes Collector - Martian Revenge! gb
Looney Tunes Collector - Martian Revenge!
▶️ Play now
Space Harrier pce
Space Harrier
▶️ Play now
Top Pro Golf segaMD
Top Pro Golf
▶️ Play now
Valkyrie no Densetsu arcade
Valkyrie no Densetsu
▶️ Play now
Army Men 2 gb
👋
Alex just joined the community
Welcome aboard!