This is a very nice project man. I found a spider crawling from under my bed this morning, and decided to watch it to get ideas for you. I noticed that spiders tend to change direction quite a bit. Yours seem to have a set direction. It would be cool to have some randomly change directions, and have other spiders change directions in order to avoid the other. I would also like to know how you animated that(how did you get them to curve with the floor like that.)