4in1b ROM Download can be obtained free for MAME on EmuGames.net only. Play emulator game in English for the USA region. 4in1b is a MAME ROM that you can download to your computer or play online within your browser. You can also download roms such as PGA Tour Golf 2 and Naruto RPG 2 Chidori Vs Rasengan that work on all devices including desktop and mobile. Be sure to rate the game if you enjoyed playing this ROM.