How do I implement a worm-like creature

Hello, so yeah it's 2015, Happy new year to you all!

So i was kinda confused on how to make a worm and animate it in Events kinda like in Terraria.

Here's an example from a game i found on TIGSource, credit goes to maxl:

Any suggestions?

For quick working mechanic just use pin behaviour & pick rope style for that fanged worm.

alextro Thanks!, although there's some space between the body parts and the head but i think i can work on that.