Knockout (1985)(Alligata Software)(Side A) ROM Download can be obtained free for ZX Spectrum on EmuGames.net only. Play emulator game in English for the USA region. Knockout is a ZX Spectrum ROM that you can download to your computer or play online within your browser. You can also download roms such as Knockout Kings and Knockout Kings 2000 that work on all devices including desktop and mobile. Be sure to rate the game if you enjoyed playing this ROM.