
Knock Out!!
Knock Out!! is an arcade - style game that was released in the heyday of arcade gaming. Although the exact release year might be a bit hard to pin - point precisely due to its vintage nature, it was likely launched in the late 1970s or early 1980s. The game was developed and published by an unknown but innovative arcade game company of that era. In Knock Out!!, players are thrust into the exciting world of boxing. The game features two - player mode as its highlight, allowing friends or arcade - goers to face off against each other in a thrilling virtual boxing match. The graphics, typical of arcade games from that time, are simple yet effective in conveying the action of the fight. Each boxer has distinct moves, including jabs, hooks, and uppercuts. The controls are straightforward, with buttons dedicated to different punches and movement keys to maneuver around the ring. The objective is clear: knock out your opponent. The game keeps track of the boxers' health, and as punches land,

The emulator loads after you press Start Game.
How to Play Knock Out!!
Save & Load States
- F2Press F2 to save your current game state at any time.
- F4Press F4 to load your last saved state.
- F3Use F3 to switch between save slots.
Save states are stored locally in your browser. They persist across sessions but are cleared if you clear browser data.
Customize Controls
Click the gear icon on the emulator toolbar → "Controls" to remap keys.
Default layout for ARCADE. Remap in emulator settings.
About Knock Out!!
Knock Out!! is a classic ARCADE game you can play online for free in your browser. No download or installation is required — click "Play Now" to start instantly. Relive the experience of vintage console gaming with authentic gameplay, right in your browser on any device.
This title is part of the PLAYERETRO game collection, which features over 1000 classic titles across multiple systems. Use the keyboard controls shown above to move and interact. Save your progress with save states and enjoy Knock Out!! anytime, anywhere.
Knock Out!! is a classic arcade boxing game from the late 1970s or early 1980s. Enjoy two - player matches, simple yet engaging graphics, and exciting sound effects as you aim to knock out your oppone