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Play Gain Ground (Japan edition) Online
Gain Ground
Play Gain Ground online on Sega Mega Drive, choose warriors with different weapons, rescue allies, reach the exit or defeat every enemy before time runs out.
Browser play

Sega Genesis / Mega Drive — EmulatorJS controls
Default Player 1 keyboard mapping. Change keys in Controller Settings.
| Console button | Keyboard |
|---|---|
| ↑ / ↓ / ← / → | ↑ / ↓ / ← / → |
| A / B / C | S / X / Z |
| X / Y / Z | Q / A / E |
| START / MODE | Enter / V |
Open Controller Settings to configure your keyboard or gamepad. Touch controls are available on mobile.
How to Play Gain Ground
Quick start
Select Arcade mode for the direct campaign and inspect each battlefield before choosing a warrior. Clear a round either by defeating every enemy or by carrying all available allies to the EXIT before time runs out. Use the normal shot for routine targets and the special weapon for enemies on ledges, behind cover or at unusual heights. Rescue prisoners by touching them, but remember they join the roster only after you escort them to the exit; do not risk every survivor in the same dangerous lane.
Controls
The D-pad moves the current warrior in eight directions and chooses a character before deployment. B fires the normal weapon. A or C selects a warrior and fires that warrior’s special weapon during play. Start pauses and allows Player 2 to join. Different warriors attack high, low or at long range, so the same input may produce a bow arc, grenade or other special. Carry a rescued ally to EXIT to add that fighter to the team.
Gain Ground 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
- 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 · segaMD
- 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.