The flash solution for the Nintendo Virtual Boy is not easy to find. I wanted the Black White Red (BWR) eInk edition, the HyperFlash32 eInk Flash Cart BWR.
I think it’s the most beautiful Flash Cartridge solution I ever saw. What a nice design. In real it looks even better.
YouTube:
Information:
https://www.retroonyx.com/product-page/virtual-boy1
https://www.virtual-boy.com/tools/hyperflasher/