Zero-In (1983)(Mattel) ROM Download can be obtained free for Mattel Aquarius on EmuGames.net only. Play emulator game in English for the USA region. Zero-In is a Mattel Aquarius ROM that you can download to your computer or play online within your browser. You can also download roms such as Seawolf + Missile and Samotnik.atr that work on all devices including desktop and mobile. Be sure to rate the game if you enjoyed playing this ROM.