This is a library for modifying a Final Fantasy VI ROM. The idea is to modify the ROM declaratively in order to facilitate collaboration and the use of version control.

from ff6.ff6rom import FF6ROM

rom = FF6ROM.deserialize_from_file('ff6.rom')
rom.inventory_items.dirk.battle_power = 200
rom.serialize_to_file('ff6-super-dagger.rom')

Basic save game support exists for the 1st slot, but because there is so little data about the format it's limited more or less to character data.