I've seen a few people around talking about not liking how high nature detail means you get the big 'love ring', or that glowing circle that happens when you collide with another deer. I'm not sure if this is new to being shared, but by changing one of the file names, you can get rid of the circle without affecting any other aspects of your gameplay~! :D
All you hafta do is go to your Tale of Tales folder (it will be in program files, if you've installed it via the default location setting), then to the 'data' folder, the 'effects' folder, and there you will find a file named 'DeerCollisionEffect.cgr'. Just rename this file-right click and add a 1 or something to the filename or, indeed, just delete the file itself.
Ta da~! No more glowy! :D
[if this isn't new, please let me know-i just figured i'd share this, in case it helped anyone out ♥]