Metal Slug 4 box art

Metal Slug 4

Neo Geo MVS FREE NO DOWNLOAD

Jump straight into Metal Slug 4 for Neo Geo MVS: 100% free, runs in your browser, nothing to install.

About Metal Slug 4

Metal Slug 4 is a classic Neo Geo MVS game you can play online here for free. The Neo Geo delivered true arcade-perfect fighting and action games, far beyond what other home systems of its day could manage.

There’s nothing to download — Metal Slug 4 runs straight in your browser with save states, fast-forward, full gamepad support and touch controls on mobile.

Whether you’re revisiting a childhood favorite or discovering Metal Slug 4 for the first time, OldGames.Games gives you instant access at full speed — and the related Neo Geo MVS games below keep the session going.

Platform
Neo Geo MVS
Players
1 player
Price
Free

Default Controls

You can play with keyboard, gamepad, or touch (on mobile). The default keyboard layout is below; remap any key inside the emulator settings.

↑↓←→D-Pad
ZA
XB
CC
VD
5Coin
1Start

Frequently Asked Questions

Is Metal Slug 4 really free to play?

Yes. Every game on OldGames.Games is free to play in your browser. There are no downloads or hidden fees; a free account is required to play.

Can I save my progress?

Yes. The emulator supports save states — you can save the exact moment you're at and resume later from any device by signing into a free OldGames account.

Does Metal Slug 4 work on mobile?

Yes. The emulator includes touch controls optimised for phones and tablets. iPhone, iPad, Android — all supported.

Can I use a gamepad?

Yes. Connect any USB or Bluetooth controller (Xbox, PlayStation, 8BitDo, Switch Pro, etc.) and it will be detected automatically.

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