Cool, I was thinking I would try to make a Fire, Ice, Earth, Lighting, and Shadow npcs.. The neat thing about the Shadow NPC I am working on is that it hits the player with an image (shadoworb.gif or something) and once it hits them, it turns their backpal to dusk8.png and works its way back to normal ever 10 seconds

I was thinking they would go in a straight line too, so we are on the same idea here.