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Play Kenyuu Densetsu Yaiba (Japan edition · Japanese) Online
Kenyuu Densetsu Yaiba
Play Kenyuu Densetsu Yaiba for Game Boy online. Investigate giant pyramids with Yaiba as he searches for his captured friends and stolen jewels
Browser play

Game Boy (GB) — EmulatorJS controls
Default Player 1 keyboard mapping. Change keys in Controller Settings.
| Console button | Keyboard |
|---|---|
| ↑ / ↓ / ← / → | ↑ / ↓ / ← / → |
| A / B | Z / X |
| START / SELECT | Enter / V |
Open Controller Settings to configure your keyboard or gamepad. Touch controls are available on mobile.
How to Play Kenyuu Densetsu Yaiba
Quick start
Press START and follow Emerald’s introduction into the pyramid. Use A to jump and B to slash. Begin with ordinary attacks: special techniques require a jewel first. After obtaining one, press SELECT, choose sword and jewel with the D-pad and confirm with A; stand still and hold then release B at full charge.
Controls
D-pad moves or selects equipment. Down crouches to halve incoming damage; Down+B thrusts. A jumps, confirms and advances messages. B slashes or cancels; hold and release B at full gauge for an equipped-jewel technique. Charging is unavailable while moving or crouching. SELECT opens sword/jewel selection; START starts, pauses or skips the demo.
Kenyuu Densetsu Yaiba — About this game
Investigate giant pyramids with Yaiba as he searches for his captured friends and stolen jewels. Sword attacks and jumps take you through traps, while rescued allies and hidden finds expand your selection of blades and jewels. Equip a jewel in a sword to unlock its special technique, then stand still to charge it. The sword-and-jewel combinations turn rescue and exploration into new combat options. Press START and follow Emerald’s introduction into the pyramid. Use A to jump and B to slash. Begin with ordinary attacks: special techniques require a jewel first. After obtaining one, press SELECT, choose sword and jewel with the D-pad and confirm with A; stand still and hold then release B at full charge.
Kenyuu Densetsu Yaiba Game manuals
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 · gb
- 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.