looks like i am all set on the tg16, sms, snes and gen front, now i am moving on to the nes. i have patched a bunch of roms and tested them on emulators before i throw them on an sd card and in my nes and they work on the emulators, but only some work on the real nes. is there a check sum type of fix i need to be doing with the nes roms as well? any help would be great. just an example is Journey to Silius with an invincibility GG code patched via the CCCGP, it patched perfectly when i play it on mednafen, but when i pop it in my everdrive and play it, it is as if it has never been altered. thanks again.