npcs.big is a .big file in Dead Rising 2 PC versions. npcs.big is located in the data/models folder. Which holds all of characters' models (skins) in the game. Players can modify these files to change the appearances of characters. There are 512 .big files in npcs.big. Items.txt controls the qualities and individual abilities of each character. items.txt also controls the qualities and individual abilities of all items in the game. streamedassets.big controls the appearances of these items.