An upgraded version of Metal Slug 2 (Metal Slug 2: Super Vehicle-001/I), titled Metal Slug X, was released in March 1999 for the Neo Geo MVS. It fixed slowdown problems from the original game, and increased the difficulty. Metal Slug X also introduced some new elements to the game system.
Gaming features only on Backbone
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Unlock the Backbone App's unified game launcher with a trial of Backbone+ Membership, included with every purchase of a Backbone One.
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Personalized recommendations to find your next favorite game.
Voice chat and multiplayer lobbies makes playing with friends or strangers seamless across games.
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Play on any screen
Use your Backbone One controller with any USB-C device, including iPad, Mac, and PC.
Get notified when it’s game time
See when your friends on Backbone start playing so you can join them.
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Stream To Twitch or Youtube
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Gaming Mode with iOS
Automatically turn on iOS Gaming Mode to silence notifications when you connect your Backbone One controller.
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Better control with physical buttons and easier stability.
Better accuracy with directional pad and joystick sensitivity.
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