If you are specifically looking for that Neo Geo aesthetic, keep in mind: Metal Slug XX
The internet traffic surrounding a Neo Geo version of this specific game typically stems from three major sources. 1. The Confusion with Metal Slug XX metal slug 7 rom neo geo
The most authentic way to play is to find a .nds ROM file and play it on a Nintendo DS emulator (like DeSmuME) on a PC or mobile device. If you are specifically looking for that Neo
Since there is no Neo Geo ROM to emulate, players must use other platforms or emulators: metal slug 7 rom neo geo