When the people behind the new Zelda game decided they wanted to use a top-down camera angle, they realised that looking at Link's green hat for 20-something hours wouldn't be all that interesting or pleasant. So they came up with a simple solution: MAKE EVERYTHING SLANTED.
Look at that image, you guys. They designed the entire game like that, just to get the camera view as perfect as possible. This is all via the most recent edition of Iwata Asks — which you should go read because it's totally fascinating. (laughs)