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

James 'Buster' Douglas Knock Out Boxing delivers old-school ring action on the Sega Mega Drive/Genesis, pairing a high-profile name with arcade-style boxing. Players face a lineup of increasingly tough opponents, timing punches, blocks and knockdowns in fast, wristy bouts that reward reflexes and reading an opponent. The game leans on short matches and memorable encounters, capturing the challenge and grit of 16-bit sports titles. Perfect for retro players chasing quick, tense fights and nostalgic visuals, it emphasizes timing, stamina management and that satisfying knockout moment that defined classic console boxing experiences.

Tags: sports single player arcade classic 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

The Tower of Druaga nes
The Tower of Druaga
▶️ Play now
Golden Sun - L'Era Perduta gba
Golden Sun - L'Era Perduta
▶️ Play now
Rugrats - Typisch Angelica gb
Rugrats - Typisch Angelica
▶️ Play now
Bubblegum Crash! - Knight Sabers 2034 pce
Bubblegum Crash! - Knight Sabers 2034
▶️ Play now
Space Adventure Cobra II - Densetsu no Otoko pcecd
Space Adventure Cobra II - Densetsu no Otoko
▶️ Play now
Disney The Little Mermaid 2 psx
Disney The Little Mermaid 2
▶️ Play now
Liquid Books Adventure 5 - Pop-Out Prose psx
Liquid Books Adventure 5 - Pop-Out Prose
▶️ Play now
Tales of Destiny 2 - CD3 psx
Tales of Destiny 2 - CD3
▶️ Play now
Chapolim x Dracula - Um Duelo Assustador segaMS
Chapolim x Dracula - Um Duelo Assustador
▶️ Play now
G-I-Joe-A Real American Hero nes
G-I-Joe-A Real American Hero
▶️ Play now
Roland Garros French Open gb
Roland Garros French Open
▶️ Play now
Star Wars - Episode 1 - Jedi Power Battles psx
Star Wars - Episode 1 - Jedi Power Battles
▶️ Play now

Game Recommendations

Monster Maker Child Verson snes
Monster Maker Child Verson
▶️ Play now
Street Fighter Alpha arcade
Street Fighter Alpha
▶️ Play now
California Games 1 segaMS
California Games 1
▶️ Play now
Bombjack Twin arcade
Bombjack Twin
▶️ Play now
Butt-Ugly Martians - B.K.M. Battles gba
Butt-Ugly Martians - B.K.M. Battles
▶️ Play now
Ultra Seven snes
Ultra Seven
▶️ Play now
Ghosts'n Goblins nes
Ghosts'n Goblins
▶️ Play now
Wakeboarding Unleashed gba
Wakeboarding Unleashed
▶️ Play now
Frogger Advance-The Great Quest gba
Frogger Advance-The Great Quest
▶️ Play now
Hi-Octane - The Track Fights Back! psx
Hi-Octane - The Track Fights Back!
▶️ Play now
Chrono Trigger snes
Chrono Trigger
▶️ Play now
Monster Lair tgcd
Monster Lair
▶️ Play now
Earthworm Jim 2 snes
Earthworm Jim 2
▶️ Play now
Toppy & Rappy arcade
Toppy & Rappy
▶️ Play now
Power Spike - Pro Beach Volleyball psx
Power Spike - Pro Beach Volleyball
▶️ Play now
Derby Jockey 2 snes
Derby Jockey 2
▶️ Play now
4 in 1 Game P6 (nes) nes
4 in 1 Game P6 (nes)
▶️ Play now
Ultima 6-The False Prophet snes
Ultima 6-The False Prophet
▶️ Play now
👋
Alex just joined the community
Welcome aboard!