Alex Kidd - High-Tech World
Alex Kidd - High-Tech World stands as a defining action title on the Sega Master System. With polished gameplay mechanics and memorable level design, this classic delivers an experience that has stood the test of time.
- Developer
- SEGA
- Released
- 1989
- Platform
- Master System
- Genre
- Action
- Players
- 1P
- Rating
- 4.5 / 5 (531)
- Last updated
Alex Kidd - High-Tech World Controls — Master System Keyboard Keys
Default keyboard bindings for Alex Kidd - High-Tech World 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.
Alex Kidd - High-Tech World Longplay & Gameplay Videos
Watch a full playthrough of Alex Kidd - High-Tech World 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
"Alex Kidd - High-Tech World" Master System longplay 1989
Alex Kidd - High-Tech World Cheat Codes
26 community-curated cheats for Alex Kidd - High-Tech World. Tick any to activate them automatically when you click "Play with cheats" — or copy a code into your own emulator.
-
Map Pieces (Replace ? With 1-8 For Each Piece)
00C0-820? -
Fake Map Piece
00C0-8209 -
Ladder
00C0-8401 -
Restorer
00C0-8501 -
Key
00C0-8601 -
Pencil
00C0-8701 -
Eraser
00C0-8801 -
Cloth
00C0-8901 -
Hang Glider
00C0-8A01 -
Timer - Minutes Modifier
00C1-0F0X -
Low Timer - Seconds Digits
00C1-0E00 -
Infinite Time - Seconds Digits
00C1-0E00
Show 14 more cheats Show fewer
-
Infinite Time - Hour Digit
00C1-0F00 -
Map Pieces [Replace ? With 1-8 For Each Piece]
00C0-8200 -
Have Ladder
00C0-8401 -
Have Restorer
00C0-8501 -
Have Key
00C0-8601 -
Have Pencil
00C0-8701 -
Have Eraser
00C0-8801 -
Have Cloth
00C0-8901 -
Have Hang Glider
00C0-8A01 -
Infinite Time
3A1-749-2A2 -
Start Time Modifier
000-8B9-C4E -
Invincibility
C9D-0DE-809 -
Enable Scene Select after Starting a New Game
0D6-3EA-F7E -
Enable Scene Select after Resuming a Saved Game
0D6-38A-F7A
External references
Frequently Asked Questions
When was Alex Kidd - High-Tech World released?
Alex Kidd - High-Tech World was released in 1989 for the Master System.
Who developed Alex Kidd - High-Tech World?
Alex Kidd - High-Tech World was developed by SEGA, available to play in your browser on RetroGameSpace.
How many players does Alex Kidd - High-Tech World support?
Alex Kidd - High-Tech World is a single-player Action game for the Master System.
What type of game is Alex Kidd - High-Tech World?
Alex Kidd - High-Tech World is a Action game for the Master System, playable instantly in your browser — no downloads, no installs.
How can I play Alex Kidd - High-Tech World for free?
Open this page and click "Play Now" — Alex Kidd - High-Tech World runs free in your browser via WebAssembly emulation. No account, no payment, no installer.
Do I need to download anything to play Alex Kidd - High-Tech World in the browser?
No. Alex Kidd - High-Tech World streams from a public archive into a browser-side Master System emulator. Nothing is installed on your computer.
Can I save my progress in Alex Kidd - High-Tech World?
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 Alex Kidd - High-Tech World 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 Alex Kidd - High-Tech World this way?
RetroGameSpace is a transient caching reverse-proxy and does not host first-party copies of Alex Kidd - High-Tech World. 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.
