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Play Mercs (World edition · English / Japanese) Online
Mercs
Play Mercs online. Run and gun through enemy armies with upgradeable weapons, vehicles and screen-clearing bombs in both the arcade campaign and an expanded Original mode.
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 Mercs
Quick start
Begin in Arcade mode to learn the seven timed missions, or choose Original mode for a longer campaign with recruitable Mercs and a shop. Keep moving diagonally while firing, collect weapon and speed upgrades, and enter vehicles for extra armour and firepower. Save Mega Crash bombs for dense enemy fire or bosses. In Original mode, gather medals and switch Mercs to preserve weakened specialists.
Controls
D-pad: move in eight directions and choose menus. A or C: fire the current weapon. B: use a Mega Crash bomb. Start: pause; in Original mode it also opens the Merc selection screen. Options can move Mega Crash to a different A/B/C button and enable rapid fire.
Mercs 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.