Animated Sprites - Jumping?

[dybot]

I'm trying to make some animated sprites but when I add them to GE they are all jumpy, bounce back and fourth quickly. Can anyone tell me what's wrong with my animation?

Animation Right

[ingsan]

I'm studying your RUN sprites, but cannot see what's wrong with them. In fact, they seem to be right for a run action.

However, there are two important things that I use when making sprites :
(1) Each sprite's center point should be equal, as well as their width and height.
(2) The bottom side of each sprite should be cut à raz like the example below so that to avoid unwanted, invisible-to-the-eye pixels :