Here is the great new, I was finally be able to correctly and cleanly dump a WonderWitch (without any hardware modification)! As you may know there is no known dump of the WonderWitchon internet, at least none I’me aware of. Anyway no emulator are really able to correctly support the WonderWitch. The only one that is “near” is oswan173, but there is no way to use it after as there is no serial port emulation, and I suspect that it does not correctly emulate the SRAM part as the WonderWitch use much more SRAM than standard game.
Also, don’t ask, I will not provide the dump for obvious copyright reasons.
But why I speak about this? Because the WonderWitch will allow me (and you also) to know more about the WonderSwan.