It is a filter that limits the vision of the player. I think it was meant to add tension but in the end it just looks ugly. I have no idea if there is a way to remove it. I like the game a lot BUT it would have looked/played much better with out that ugly grainy filter hounding on the visuals. --- Nintendo isn't the Apple of gaming, Apple is. Nintendo is the Studio Ghibli of gaming. They create imaginative worlds anyone can get lost in no matter the age.