Retro5.net

As far as I understand it yes it's an issue that was never addressed by Hyperkin. At first saves did not work at all period but they've at least fixed that. Also you can play Mark III cartridges by using the Retro Freak Gear Converter from by Cyber Gadget (works exactly like Hyperkin's adapter but ...

I curious to know if its possible. There are only a couple Master System games with save capability, but the 'copy save to cart' option always fails for me. Ive tried phantasy star, golden axe warrior, monopoly, miracke warriors. Same thing with all. Copy save to retron works, copy save to cart fail...