does anyone know how to do this?

And that behaviour is?

is what I want to know. I need to make a character like that but I don't know how

To make it, you'll need to be able to describe it first, then you can work on each part and ask specific questions.

Pokey is a platformer enemy that wanders back and forth with 4 parts - 3 bodies and a head. You can "eat" each piece of him from the bottom up with Yoshi, but he stays stays alive until you get his head.

is what I want to know. I need to make a character like that but I don't know how

If you mean make what you posted that's a sprite animation. An artist would draw an animation in frames and export it.

> is what I want to know. I need to make a character like that but I don't know how

If you mean make what you posted that's a sprite animation. An artist would draw an animation in frames and export it.

exactly that I want each part to be independent

It just like creating snake segments with exception the movement wiggling in horizontal.

An example so you are free to modify the sine behavior to match your preference: dropbox.com/s/x2now0l7f993boo/snake_body_pin.capx

thanks I will try to recreate something with that example