Virtual pinball game must be played on default settings. Extra Balls allowed. Only real pinball cabinets, along with a Dot Matrix Display, reflecting the score are allowed. Full size, Mini-Cabinets and/or any custom made sized cabinets are allowed. Freeware and source available video game engine software, such as any Visual Pinball, Future Pinball, and/or PinMAME ROMS, along with PinballX front end versions are preferred, but not mandatory.