Screenshots1 / 3
Wonder Boy in Monster Land
神奇小子：in Monster Land
Wonder Boy in Monster Land is a side-scrolling action platformer developed by SEGA and released in 1987. Players control Wonder Boy as he navigates through monster-infested lands, engaging in real-time combat with enemies while collecting items and upgrades. The game features a shopping system where players can purchase new weapons, armor, and equipment to strengthen their character. Each stage presents distinct environments filled with varied enemy types and obstacles requiring both combat skill and platforming precision. The action is fast-paced and challenging, demanding accurate timing and sharp reflexes. Wonder Boy must traverse multiple levels, defeat stage-ending bosses, and strategically manage limited resources. The combination of action-based gameplay, exploration, and RPG-style equipment mechanics distinguishes the game from other platformers of its era.
- Developer
- SEGA
- Platform
- Master System
- Genre
- Action
- Players
- 1P
- Rating
- 4.7 / 5 (2.3K)
- Last updated
Wonder Boy in Monster Land Controls — Master System Keyboard Keys
Default keyboard bindings for Wonder Boy in Monster Land on our in-browser Master System 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 | 1 | Primary action (jump / confirm) |
| Z | 2 | Secondary action (attack / cancel) |
| Enter | Pause | Start / Pause |
Rebind any key from the EmulatorJS in-game settings menu (gear icon → Controls). A connected gamepad auto-maps to the same buttons.
Wonder Boy in Monster Land Longplay & Gameplay Videos
Watch a full playthrough of Wonder Boy in Monster Land on Master System before you dive in — recommended for getting a feel for the game's pacing, story beats, and difficulty curve.
Watch longplay on YouTube
"Wonder Boy in Monster Land" Master System longplay
Wonder Boy in Monster Land Cheat Codes
30 community-curated cheats for Wonder Boy in Monster Land. Tick any to activate them automatically when you click "Play with cheats" — or copy a code into your own emulator.
-
Always Have 99 Gold
00C0-B999 -
Invincibility
00C0-BC14 -
Infinite Revival Potions
00C1-AB04 -
Mega Jumps
00C1-C301 -
Infinite Money
00C0-BA44 -
Start With The Sword
00C2-5400 -
Start With The Shield
00C1-A102 -
Start With The Gauntlet
00C1-A302 -
Start With The Helmet
00C1-A502 -
Start With The Wing Boots
00C1-A702 -
Start With The Key
00C1-BF03 -
Legendary Sword (When You Pick Up 1st Sword)
00C1-A204
Show 18 more cheats Show fewer
-
Legendary Armor
00C1-A005 -
Start With The Bell
00C1-EC05 -
Wonderboy Is Invulnerable
00C1-C101 -
Wonderboy Starts With Maximum Hearts
00C0-BD0A -
Legendary Sword [When You Pick Up 1st Sword]
00C1-A204 -
Invulnerability
00C1-C001C98-AFE-19B -
Legendary Boots
00C1-9F04 -
Legendary Shield
00C1-A104 -
Unlock Sword
00C2-5400 -
Infinite Time
00C1-99002AA-03C-6E2 -
Cape
00C1-C0FF -
Flute
00C1-BE01 -
Infinite Items
00CF-7D99+00CF-7C01 -
Round Select
00C0-9401 -
Infinite Energy
7E8-95C-3B7 -
Infinite Revival Potion
3A8-DAC-2A2 -
Infinite Gold
1AA-78F-A22+1AA-7EF-A22 -
Infinite Magic Weapons
00A-B0B-3BE
External references
Frequently Asked Questions
Who developed Wonder Boy in Monster Land?
Wonder Boy in Monster Land was developed by SEGA, available to play in your browser on RetroGameSpace.
How many players does Wonder Boy in Monster Land support?
Wonder Boy in Monster Land is a single-player Action game for the Master System.
What type of game is Wonder Boy in Monster Land?
Wonder Boy in Monster Land is a Action game for the Master System, playable instantly in your browser — no downloads, no installs.
How can I play Wonder Boy in Monster Land for free?
Open this page and click "Play Now" — Wonder Boy in Monster Land runs free in your browser via WebAssembly emulation. No account, no payment, no installer.
Do I need to download anything to play Wonder Boy in Monster Land in the browser?
No. Wonder Boy in Monster Land streams from a public archive into a browser-side Master System emulator. Nothing is installed on your computer.
Can I save my progress in Wonder Boy in Monster Land?
Yes. Save states are stored in your browser (IndexedDB) per game, and you can also use any in-game save the original Master System cartridge supported.
Does Wonder Boy in Monster Land work on mobile devices?
Yes — the Master System emulator runs on iOS Safari and Android Chrome. Touch controls overlay the game; landscape mode is recommended.
Is it legal to play Wonder Boy in Monster Land this way?
RetroGameSpace is a transient caching reverse-proxy and does not host first-party copies of Wonder Boy in Monster Land. 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.
