Eye Orientation of Ghosts in Pac-Man Games

Another of those things that perhaps says a lot about me: I saw a guy wearing a t-shirt with the ghost Shadow/Blinky from the Pac-Man series. And besides thinking that the shirt is awesome, do you know what else I noticed? That the ghost's eyes were oriented in the way that allows you to go through it without dying (which, by the way, is a skill ones needs to get really good at these games).

One of these years, I hope that I will get to the kill screen in Ms. Pac-Man...