Changes

Even when a Game & Watch game's ROM has been dumped, one of the biggest challenges with accurately emulating it is with how the Game & Watch displayed graphics. Rather than by sending output to an LCD display like most cartridge based handhelds do, Game & Watch games (as well as most other handheld electronic games from the same time) displayed graphics by lighting up pre-drawn LCD segments, like a calculator. In order to recreate this as accurately as possible, MAME uses .SVG files traced from high quality scans of the LCD screen, allowing graphics in supported Game & Watch games to be displayed crisply at any resolution without the loss of any detail. While this is the most accurate way to recreate the LCD graphics outside of obtaining the original art from Nintendo, it is a difficult and time consuming process, as not only does the LCD need to be scanned at a high resolution with all segments lit up to capture all of the graphics, but the scans must be traced very carefully to faithfully recreate the original artwork.