YY-SMB2 B1 Vx.xx (SMB1 Hack) ROM Download can be obtained free for Nintendo on EmuGames.net only. Play emulator game in English for the USA region. YY-SMB2 B1 Vx.xx is a NES ROM that you can download to your computer or play online within your browser. You can also download roms such as Super Mario Bros For Hardplayers and Zombies Ate My Neighbors that work on all devices including desktop and mobile. Be sure to rate the game if you enjoyed playing this ROM.