Virtual Boy was cartridge based, these flash carts are cool because they have e-ink displays in them so that you can load custom label images to see what game you have flashed.
This is what an original cart looks like 
Virtual Boy was cartridge based, these flash carts are cool because they have e-ink displays in them so that you can load custom label images to see what game you have flashed.
This is what an original cart looks like 