More browsing paths
Play Super Boy III (South Korea edition · English) Online
Super Boy III
Play Super Boy III online on Master System. Work through sixteen side-scrolling rounds, using jumps and running to cross gaps and reach the enemy waiting at each finish.
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 Super Boy III
Quick start
Begin the first round, collect nearby coins and use 1 to jump over the first gaps. Hold 2 when you need a running approach, but check where the jump will land.
Controls
Left/right: move. 1: jump. Hold 2: run.
Super Boy III — About this game
Work through sixteen side-scrolling rounds, using jumps and running to cross gaps and reach the enemy waiting at each finish. Coins and face-marked tokens reward exploration, while growth, fire and brief invincibility items change how safely the hero can advance. Checkpoints let a failed attempt resume within a round. Moving platforms and sinking logs need more care than solid ground: keep an escape jump ready before committing to them.
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.