Metal Slug - 2nd Mission (World) (En,Ja) (Demo) ROM Download can be obtained free for Neo Geo Pocket Color on EmuGames.net only. Play emulator game in English for the USA region. Metal Slug 2nd Mission is a Neo Geo Pocket Color ROM that you can download to your computer or play online within your browser. You can also download roms such as Metal Slug Advance and Metal Slug Anthology that work on all devices including desktop and mobile. Be sure to rate the game if you enjoyed playing this ROM.