The original arcade game
The 1996 debut introduces the Metal Slug tank, hostage rescues and weapon pickups.
SNK’s official series history provides the release background. This collection presents 6 main missions for this title; it does not add a mission-selection menu to the original arcade campaign.
Explore every mission
Open a mission briefing for campaign order, encounter references and a focused practice plan. Play opens the selected game; the original arcade campaign determines which mission comes next.
Start here to learn the arcade rhythm
With six main missions, the first game is a clear introduction to movement, jump timing and conserving grenades. Try moving and firing together before advancing into the next group of enemies. Rescued prisoners can drop useful items; collect a weapon pickup when it is safe to approach.
Get comfortable with the tank
Jump toward an available Slug to board it. The on-screen D / SLUG action combines down and jump for vehicle actions; you can also hold down and press B / JUMP to exit. The original game decides when a vehicle can be entered or left.
Play it in this browser collection
The Play button opens the homepage with Metal Slug 1 selected. Choose Play Solo to download and open that title, or Host Two Players to begin a local co-op session. Press the bottom A / FIRE button when it says START, or press Enter, to enter the original game. The same button says CONTINUE when lives run out; starting and continuing include free credits.
Controls overlay the picture on phones and tablets. The equal-sized circular actions are A / FIRE, B / JUMP, C / BOMB and D / SLUG, with 70% opacity for new layouts. Your saved settings remain in effect. Choose Full width or Original proportions, then adjust button size, opacity and placement in Options & Controls. The mobile guide explains each setting. Two-player co-op uses invite and reply codes on the same Wi-Fi or hotspot; Bluetooth is not supported.
Continues, sound and saved progress
For solo sessions, pause to Save State and use Load State in the same browser later. Saves are local and may be affected by browser storage cleanup or game updates. Multiplayer sessions do not offer save-state controls.
Converted audio is available, with some effects still being verified. Read the progress and offline guide before closing a session or playing without a connection.
