Maniac Mansion (Lucasfilm) (Side 2) ROM Download can be obtained free for Commodore 64 on EmuGames.net only. Play emulator game in English for the USA region. Maniac Mansion is a C64 ROM that you can download to your computer or play online within your browser. You can also download roms such as Maniac Mansion and Animaniacs that work on all devices including desktop and mobile. Be sure to rate the game if you enjoyed playing this ROM.