People have that PS2 ISO image thing they do by inserting codebreaker or whatever into the ISO and booting that 1st, and then having that set codes and then that boots the game.
If you're really technical and have the knowledge, you could also insert the codes into the elf file itself, but I don't know how to adjust it to make it start loading the elf file from a different offset in the file.
Anybody ever tried doing anything with that PS2_Net_emu thing from rebug or whatever it was called???
Yeah i'm doing it. but it doesn't work on certain games even with the right LBA order due to hidden data. also we can't extract dual layers based games such as Xenosaga EP 1 or FF 12 you'll only get the first layer extracted, and the method on how to merge both layers into one is unbelievably complicated, with all the Hex editing and banners and all that stuff.
i need this because i'm revisiting every JRPG games i have on the PS2 and i don't have the time to grind, so i mainly use code to unlock stuff, gears, money and edit evasion and MP states, i never used infinite health or Max ATK or god mod because it'll render the game pointless and and kill the fun. i just need to enojy the story without having to grind for weeks