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Play Mahjong Hyper Reaction 2 (Japan) (Japan edition · Japanese) Online
Mahjong Hyper Reaction 2 (Japan)
Play Mahjong Hyper Reaction 2 (Japan) online. Face the four opponents in a sequence of bar-set mahjong encounters.
Browser play

Arcade — EmulatorJS controls
Default Player 1 keyboard mapping. Change keys in Controller Settings.
| Console button | Keyboard |
|---|---|
| ↑ / ↓ / ← / → | ↑ / ↓ / ← / → |
| RetroPad A / B / X / Y | Z / X / A / S |
| L / R | Q / E |
| Insert coin | V |
| START | Enter |
Open Controller Settings to configure your keyboard or gamepad. Touch controls are available on mobile.
How to Play Mahjong Hyper Reaction 2 (Japan)
Quick start
- Inspect the current hand, drawn tile and visible discards.
- Use the matching tile key to choose a discard.
- Use Pon, Chi, Kan, Reach or Ron only when the corresponding declaration is legal.
- Complete a winning hand and continue through the next opponent, story scene or bonus round.
Controls
Use the dedicated mahjong panel: A through N select hand positions, while Pon, Chi, Kan, Reach and Ron make their named declarations. Use Start to begin; titles that expose Bet, Flip Flop, Last Chance or bonus-game inputs use those only when the corresponding prompt appears.
Mahjong Hyper Reaction 2 (Japan) — About this game
Mahjong Hyper Reaction 2 (Japan) stages its one-on-one mahjong encounters in a bar setting with four illustrated opponents. The changing opponent provides the framework for the sequence of tile matches and their adult presentation. Its mahjong control panel is arranged for tile and hand actions, making the interface different from a joystick-based fighting game despite the face-to-face competition.
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 · arcade
- 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.