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Play Flash Boy (vertical) (DECO Cassette MD) (No.12/Ver.0/Set.1,Japan) (Japan edition · Revision tical; 0/Set.1 · Japanese) Online
Flash Boy (vertical) (DECO Cassette MD) (No.12/Ver.0/Set.1,Japan)
Play Flash Boy (vertical) (DECO Cassette MD) (No.12/Ver.0/Set.1,Japan) online. Fight through space with fists and energy-dependent super-speed attacks.
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 Flash Boy (vertical) (DECO Cassette MD) (No.12/Ver.0/Set.1,Japan)
Quick start
- Fly toward an approaching enemy.
- Use the close fighting attack.
- Try a super-speed attack while energy remains.
- Watch the energy reserve before relying on another burst.
Controls
Use the directional controls to fly toward or away from enemies. Use the action inputs for close-range fighting and the energy-dependent super-speed attack; their physical assignment is not inferred from generic labels.
Flash Boy (vertical) (DECO Cassette MD) (No.12/Ver.0/Set.1,Japan) — About this game
Flash Boy sends a superhero into space with fists and a burst of super speed as the means of fighting. The speed attack depends on the remaining energy reserve, so a depleted reserve leaves the hero without that stronger means of destroying enemies. Continuing the flight therefore requires attention to both approaching targets and how much energy remains for the next burst.
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.