Most of the game data is stored in this format. PC in-game menu is .tga so no problem there, and music/sounds are all .wav however the actual models, sprites, textures are likely straight from the n64 in these .bin files. Haven't found a way to get into them.
endian big get FILES long for i = 0 < FILES get OFFSET long putarray 0 i OFFSET next i get OFFSET asize putarray 0 i OFFSET for i = 0 < FILES getarray OFFSET 0 i math i + 1 getarray SIZE 0 i math SIZE - OFFSET log "" OFFSET SIZE next