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Play Alex Kido (Hack · Taiwan edition · Japanese) Online

Alex Kido

Play Alex Kido online on Master System. Alex uses his rock-breaking punches to travel through mountains, lakes and castles and confront Janken.

Browser play

How to play

Sega Master System — EmulatorJS controls

Default Player 1 keyboard mapping. Change keys in Controller Settings.

Console button	Keyboard
↑ / ↓ / ← / →	↑ / ↓ / ← / →
1 / START	X
2	Z

Open Controller Settings to configure your keyboard or gamepad. Touch controls are available on mobile.

How to Play Alex Kido

Quick start

Begin a game and descend Mt. Eternal carefully. Punch accessible blocks, collect money and avoid skull boxes before entering the water.

Controls

Left/right moves and down crouches. Use the jump action to cross gaps and the punch action to break blocks or use the active attack item. Pause opens map and inventory.

Alex Kido — About this game

Alex uses his rock-breaking punches to travel through mountains, lakes and castles and confront Janken. Blocks hide money and useful objects, but some release dangerous enemies. Shops turn collected coins into vehicles and temporary powers, while several encounters are decided by rock-paper-scissors rather than ordinary combat. Careful jumps and a little preparation matter as much as attacking.

Alex Kido 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: October 24, 2026
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 · segaMS
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.

Editorial policy and sources Trust center EmulatorJS player help