Warrior~

[Etchebeur]

someone can help me ?with movements? 

[Beoran]

In the first animation, how about also making his arms move a bit, in stead of just his legs? In the second animation, the character just "slides" forward magically without making any steps. Was that the effect you wanted? If not, you might  want to consider adding a few steps to it.

[Elrinth]

Have you seen the game Rudra No Hihou? Rudora's Secret Treasure?
If not I suggest you take a look at it. It uses some cool ways to animate characters and monsters.
Have a look: http://www.youtube.com/watch?v=3XsrjWWCQN0

They separate parts of the body and move them separetly from the rest. It's a pretty simple way to do things.
Maybe you can make use of what's shown in the video?