One problem with the original camera is that vias on the back of the sensor PCB were so large, that light shown through and caused some light distortions. Made a little model to cover as much of the back of the sensor PCB as possible to stop light from leaking in. Makes a notable difference.
My new Game Boy Mini Camera! I redesigned HDR’s camera flash cart PCB into a smaller size and incorporated the original sensor, modeled a new shell and lens holder. This uses an iPhone XR lens & lens cover.