LAST EDITED ON 05-13-13 AT 07:08 AM (EST)No matter what kind of visual line you have on him, Mickey's ears will always look round. Front, back, sides, diagonal, underneath -- doesn't matter. Two perfect spheres attached to his head. Somehow.
Rarity's mane should obscure at least part of her face half the time, on the side where the curls fall -- but that side is always the one facing away from the viewer. How does her mane do that? Only her stylist knows for sure. And apparently that's the stylist for all of Equestria, because virtually every obscuring mane pulls the same trick.
Goku can rotate his head, flip upside-down, get soaking wet -- doesn't matter. His hair will look the same regardless. From any viewpoint. From every viewpoint.
Spongebob is virtually always facing the camera. Or else.
Phineas is never, ever seen from anything other than a 3/4 shot...
...well, actually, there was that one time...
http://img811.imageshack.us/img811/2544/phineas.png
http://tvtropes.org/pmwiki/pmwiki.php/Main/CheatedAngle
...and that's why.