I would like to know if it would be possible to create a simple device to backup the sram of a cartdrige and write sram back to it !! Could it be done for the Snes to ??
Do you have a parallel port? If so a very powerful read/write circuit can be built with just two counter chips (and power supply, connector).
It would be sweet if there was some kind memory card for the N.E.S. that worked with the PowerPak that saved states or crazy long passwords. Maybe a device that attached to the 2nd controller port or expansion port.
OT: The PowerPak itself can do real-time save states, it only needs to be implemented.
Could it also save your high scores?