For a DRM-free version that you can play offline without any launchers, check GOG .
Originally released in 1998 for the Neo-Geo, Metal Slug 2 introduced iconic elements to the series: metal-slug-2-free-download-pc-game-full-version
Joining Marco and Tarma are Eri Kasamoto and Fiolina Germi. For a DRM-free version that you can play