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Play Hyokkori Hyōtanjima: Nazo no Kaizokusen (Japan edition · Japanese) Online
ひょっこりひょうたん島 なぞのかいぞくせん
Play Hyokkori Hyōtanjima: Nazo no Kaizokusen online. Investigate the ship, choose a child and tool, and solve top-down switch puzzles.
Browser play
Nintendo Entertainment System (NES) / Famicom — 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 Hyokkori Hyōtanjima: Nazo no Kaizokusen
Quick start
After the prologue, use Up/Down to select 「はじめから」 and press A. Advance dialogue with A when the lower-right marker flashes; choose investigation answers with Up/Down and A. Before a subgame, use Up/Down for the child and Left/Right for one tool. Read the character's advice, confirm with A, then choose 「はい」. Look for switches and movable barrels before rushing past enemies.
Controls
D-pad moves the character and selects options. A advances text, confirms choices and opens treasure chests. B uses the chosen tool. START skips the prologue to the title or pauses a subgame. SELECT restarts the current subgame and returns to character/tool selection; it is not a general cancel button.
Hyokkori Hyōtanjima: Nazo no Kaizokusen — About this game
Hyokkori Hyōtanjima: Nazo no Kaizokusen alternates dialogue-led adventure scenes with compact action puzzles aboard a strange ship. Before a subgame, you choose one of the children and a single tool, with their comments and ability ratings helping you decide. Speed and throwing strength matter alongside simple force. Inside the ship, barrels can hold floor switches down, boomerangs temporarily stop enemies, and a gun turns foes into stones that can be pushed into position. Other sections involve climbing masts and pipes. The challenge is to understand the room and arrive with the right equipment, not simply defeat everything on screen. Chapter passwords let you return to the story later.
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 · nes
- 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.