File:Gb-megamem-factory-simulation.png

The Mega Memory Card (Game Boy) factory test screen running in BGB. This screenshot show a simulation of what the test when executed with the real cartridge, and no secondary cartridge plugged in. The simulation was done by tracing the code in BGB up until the point where the flash ID values are supposed to be read from the flash memory and then changed those values.

Here is a photo of it running on a real Game Boy: http://www.flickr.com/photos/gameboygenius/8691710128/in/photostream