Master of Monsters
Master of Monsters remains one of the finest action experiences on the Sega Genesis. Its innovative design and addictive gameplay have earned it a permanent place in gaming history.
- Developer
- Renovation Products
- Released
- 1991
- Platform
- Mega Drive
- Genre
- Action
- Players
- 4P
- Rating
- 4.5 / 5 (1.1K)
- Last updated
Master of Monsters Controls — Mega Drive Keyboard Keys
Default keyboard bindings for Master of Monsters on our in-browser Mega Drive emulator. Plug in a USB or Bluetooth gamepad to auto-detect mappings, or rebind any key from the emulator settings menu.
| Keyboard | Console button | Typical use |
|---|---|---|
| ↑ | D-Pad Up | Move up |
| ↓ | D-Pad Down | Move down |
| ← | D-Pad Left | Move left |
| → | D-Pad Right | Move right |
| X | A | Primary action (jump / confirm) |
| Z | B | Secondary action (attack / cancel) |
| S | C | Tertiary action |
| A | X | Quaternary action |
| Q | Y | Fifth button |
| W | Z | Sixth button |
| Enter | Start | Start / Pause |
These bindings cover the 6-button Mega Drive controller. Most older titles only use buttons A/B/C; the extra X/Y/Z buttons matter for Street Fighter II and other 6-button fighters.
Rebind any key from the EmulatorJS in-game settings menu (gear icon → Controls). A connected gamepad auto-maps to the same buttons.
Master of Monsters Longplay & Gameplay Videos
Watch a full playthrough of Master of Monsters on Mega Drive before you dive in — recommended for getting a feel for the game's pacing, story beats, and difficulty curve.
Watch longplay on YouTube
"Master of Monsters" Mega Drive longplay 1991
Master of Monsters Cheat Codes
28 community-curated cheats for Master of Monsters. Tick any to activate them automatically when you click "Play with cheats" — or copy a code into your own emulator.
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Blue towers
FF2100:0000FF2100:?? -
Green towers
FF2102:0000FF2102:?? -
Red towers
FF2101:0000FF2100:0000FF2101:?? -
Yellow towers
FF2103:0000FF2103:00?? -
Red HP Mod
FF281D:E703 -
Blue HP Mod
FF280A:E703 -
Green HP Mod
FF282F:E703 -
Yellow HP
FF2841:E703 -
Red MP Mod
FF2128:FFFF -
Blue MP Mod
FF2126:FFFF -
Green MP Mod
FF212A:FFFF -
Yellow MP Mod
FF212C:FFFF
Show 16 more cheats Show fewer
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'MASTER' Is Selectable In The 'CAMP-1' And 'CAMP-2' Modes
AKKA-AA2W -
'PLAYER' Is Selectable In The 'CAMP-1' And 'CAMP-2' Modes
AKKA-AA3E -
You Can Use Magic More Than One Time
AJ1A-AA4Y -
Max Blue Magic
FF212E:00FFFF212E:FF -
Max Red Magic
FF212E:00FFFF212F:FF -
Max Green Magic
FF2130:00FFFF2130:FF -
Max Yellow Magic
FF2130:00FFFF2131:FF -
Red HP Modifier
FF281C:0000FF281D:?? -
Blue HP Modifier
FF280A:0000FF280A:?? -
Green HP Modifier
FF282E:0000FF282F:?? -
Yellow HP Modifier
FF2840:0000FF2841:?? -
Red MP Modifier
FF2128:00FFFF2128:?? -
Blue MP Modifier
FF2126:00FFFF2126:?? -
Green MP Modifier
FF212A:00FFFF212A:?? -
Yellow MP Modifier
FF212C:00FFFF212C:?? -
Master Code
REBT-A6WN
External references
Frequently Asked Questions
When was Master of Monsters released?
Master of Monsters was released in 1991 for the Mega Drive.
Who developed Master of Monsters?
Master of Monsters was developed by Renovation Products, available to play in your browser on RetroGameSpace.
How many players does Master of Monsters support?
Master of Monsters supports up to 4 players, ideal for couch co-op or competitive sessions on the Mega Drive.
What type of game is Master of Monsters?
Master of Monsters is a Action game for the Mega Drive, playable instantly in your browser — no downloads, no installs.
How can I play Master of Monsters for free?
Open this page and click "Play Now" — Master of Monsters runs free in your browser via WebAssembly emulation. No account, no payment, no installer.
Do I need to download anything to play Master of Monsters in the browser?
No. Master of Monsters streams from a public archive into a browser-side Mega Drive emulator. Nothing is installed on your computer.
Can I save my progress in Master of Monsters?
Yes. Save states are stored in your browser (IndexedDB) per game, and you can also use any in-game save the original Mega Drive cartridge supported.
Does Master of Monsters work on mobile devices?
Yes — the Mega Drive emulator runs on iOS Safari and Android Chrome. Touch controls overlay the game; landscape mode is recommended.
Is it legal to play Master of Monsters this way?
RetroGameSpace is a transient caching reverse-proxy and does not host first-party copies of Master of Monsters. Game files are fetched on demand from publicly-accessible archives. You are responsible for compliance with your local laws and the bring-your-own-ROM principle.
