Dimensions

Oh lord. At first I was like "but that's just parallel dimensions, not a new direction of movement", then I wtp'd. Then again, this is making use of the 2D presentation of the 3D space, much like how "you" look at everything and it's gonna be a straight line in front of your eyes in 2D world. A circle in 2D world would be an infinitely long line for one inside it.
Still pretty damned fun regardless.

Damn Robby, I was almost going to bed too, now I can't sleep.

Imagine if this could work in a 3D environment. I don't know how to explain it, but I can see it in my head.