Can I play Metal Slug X (Arcade WASM) online in browser without downloading?

Yes. WASM Arcade runs Metal Slug X (Arcade WASM) using native WebAssembly and WebGL directly in your web browser. No downloads, emulators, or installations are required.

Are game saves supported on WASM Arcade?

Yes. All game progress and save states are automatically saved client-side inside your browser's IndexedDB. You can also export and import .sav backup files anytime.

Can I play with an Xbox or PlayStation controller?

Yes. Plug in any standard USB or Bluetooth gamepad (Xbox, PlayStation, Switch Pro) and it will automatically map controls with zero input lag.

Is this game unblocked for school Chromebooks?

Yes. Metal Slug X (Arcade WASM) on WASM Arcade runs entirely in-browser over secure HTTPS with zero ads and zero external plugins, making it accessible on school Chromebooks and laptops.

💡Find any bugs or want to request a game? Just mail to support@wasmarcade.app

✉️ Mail Us

Metal Slug X (Arcade WASM)EmulatorWasm

🎮Gamepad Ready

Booting WebAssembly Engine...Streaming engine bytecode & ROM assets. First launch takes 5–15s. Subsequent launches load instantly from local browser cache.

🕹️

Metal Slug X (Arcade WASM)

The definitive run-and-gun arcade masterpiece powered by our first-party WASM core

★ 4.9Verified Playable

⚡ 60 FPSHardware Accelerated

🎮 GamepadXbox / PS / Touch

💾 Save StateLocal IndexedDB

OFFICIAL ART★ 4.9

Arcade & FightOriginal Release: 1999

Metal Slug X (Arcade WASM)

The definitive run-and-gun arcade masterpiece powered by our first-party WASM core

Play Metal Slug X directly in your browser with true Neo Geo 320x224 visuals, authentic coin credit chutes, multi-part chunk streaming, and zero-egress IndexedDB caching.

📜Historical Lore & Background

Running on WASM Arcade's high-performance arcade engine. Combines M68000 and Neo Geo arcade hardware emulation with Web Audio zero-latency synthesis.

⚙️WebAssembly Architecture

Engine RuntimeEmulatorWasm

Original DeveloperSNK / Nazca (WASM Core by WASM Arcade)

Aspect Ratio4:3 CRT Standard

Storage ModelLocal IndexedDB (No Cloud Upload)

WASM Arcade 1st-Party EmulatorWasm Core.

Default Controls & Key Bindings

Zero-latency inputs. Gamepad controls auto-map when plugged in.

Keyboard & Gamepad

Action / Movement	Keyboard Key	Standard Gamepad Button
Insert Coin (Credit)	V or 5	Select Button
Start Game	Enter or Space	Start Button
Move / Aim / Crouch	W / A / S / D or Arrow Keys	D-Pad / Left Stick
Shoot Weapon (A)	X or K	X Button
Jump (B)	Z or J	A Button
Throw Grenade (C)	Shift or U	Y Button

Frequently Asked Questions

How do I insert coins and start?

Press V (or tap Insert Coin) to add arcade credits, then press Enter or Space (1P Start) to begin.

How does it load so fast?

Metal Slug X is downloaded via Cloudflare-friendly chunked slices and cached directly in your browser's IndexedDB, eliminating redundant downloads on revisit.