MottZilla wrote:
If you mean SD Gundam Gaiden, that is mapper 159 and not the same as DBZ.
If you want to play DBZ in english, buy the original cartridge and replace the MaskROMs with EPROM or Flash just like any other cartridge. You might have to rewire like any other MaskROM, or maybe not. You'll just have to check and see.
I've try to move maskrom and replace eprom on original DBZ but it show dark screen.