Figure 1: The latest release of RetroPie 4.7.1 is compatible with all of the PiBoy’s software.
The new RetroPie release 4.7.1, released on Nov 4th, 2020, has been tested with all of the PiBoy DMG software and is compatible with the release. You can download the new version here. As always make sure you download the correct version for the Pi model you are using. Also, before burning the image to an SD card, make sure to extract the compressed image file.