It's a mix of different texture packs I found online and some I made myself. There isn't one particular one...however the one I'm using now is even more crazier. You can find it by googling Luigi's Mansion HD texture pack. There's a version 3.0 (I think it is) that's pretty good. The guy who supplies them does a lot of gamecube games and they are very very good! Makes the game more immersive.
