Try making custom brushes in Photoshop, and using the brush settings to scatter/rotate the strokes. For example http://www.idigitalemotion.com/tutorials/guest/custombrush/custombrush.html
That's because a theory can be disproven with a single example and there's no need to dig out games like Gish or Uplink that most gamers haven't even heard of.
Hmmm, they all worked for me. Some of the scenes seem out of place, but they do help demonstrate the movement. Example: Dandelions coming out of a wall
yeah on new platform it should be ok. But for example, iPhone will convert a 512x1024 to a 1024x1024 automatically. Some very old graphical card also do that.