normal walk cycle but with little ups and downs that's it. i did not post the full sequence of the walk cycle please draw some in between frames to make the animation smoother.
gravity plays the important role in blood drop effect. the fluid drop should gradually increase its speed till 25% of the distance and high speed from 26% till 100%. after the drop falls on the ground it splatters the sequence is shown in the picture.
note: used 15 layers for the movie and separately 9 layers for zombie walk.
this is just a simple zombie animation add some more details and color it to look more real.
thank you for referring 