ZZZ_UNK_MUSCLE (49168) ROM Download can be obtained free for Nintendo on EmuGames.net only. Play emulator game in English for the USA region. ZZZ_UNK_MUSCLE is a NES ROM that you can download to your computer or play online within your browser. You can also download roms such as ZZZ_UNK_MUSCLE-- and ZZZ_UNK_wr6 that work on all devices including desktop and mobile. Be sure to rate the game if you enjoyed playing this ROM.