Boulder Dash II - Rockford's Riot (1985)(Prism Leisure)[a] ROM Download can be obtained free for ZX Spectrum on EmuGames.net only. Play emulator game in English for the USA region. Boulder Dash II Rockford's Riot 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 ZZZ_UNK_Boulder Dash and Boulder Dash that work on all devices including desktop and mobile. Be sure to rate the game if you enjoyed playing this ROM.