Ripping textures from .iso?

[LoganTheHammer]

Hey! I want to rip the textures from Wipeout: The Game for the Wii (for absolutely no reason besides the fact I love the game) and I only see that I can rip textures from Dolphin using their dump textures feature. The only problem is is that that only dumps the textures present in game. I want to dump all the textures from the entire game. Any way how besides using some insane hacker skills my dumb brain cant understand?