To go along with the previously released Mortal Kombat mod digitaloverdose has release the MKScriptBinary Estractor tool.A  This lets you have easier access to edit StringBlocks of characters and MKTweakVar lets you mod the variables that are associate with each character or NPC.

Source:A  http://psx-scene.com/forums/content/mortal-kombat-fatality-edition-mk9-modding-advances-cfw-2042/