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Play Gradius (Japan, ROM version) (Japan edition · Revision sion · Japanese) Online
Gradius (Japan, ROM version)
Play Gradius (Japan, ROM version) online. Advance the upgrade bar with capsules and activate the selected speed, weapon or Option improvement.
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 Gradius (Japan, ROM version)
Quick start
- Collect a power capsule and watch the selection bar.
- Continue collecting until the intended upgrade is highlighted.
- Activate Power Up to take it.
- Plan a safe line through the next narrow corridor.
Controls
Move the Vic Viper with the directional control. Fire attacks with the current weapons; Power Up activates the presently highlighted upgrade and resets the selection. Capsules advance the highlighted choice.
Gradius (Japan, ROM version) — About this game
Gradius (Japan, ROM version) makes each power capsule a choice about the next upgrade. A capsule advances the highlighted position on the selection bar; activating Power Up takes that choice and starts the selection again. Speed, missiles, stronger guns and supporting Options change how the Vic Viper handles the next corridor. Stage scenery constrains movement as much as the incoming enemies, while major targets protect the core that must be exposed. Learn the first capsule sequence before activating an upgrade, then balance the desired weapon against the space needed to control the strengthened ship.
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.