flipped with a 1 pixel reposition of one of the tails and a recolour...
http://pixeljoint.com/pixelart/33558.htm#
It wasn't referenced and the animation is definately definately close. (Frame by frame it is almost exactly the same with a little redrawing)
I agree with Morgengrauen comment about moving the body. Otherwise it's pretty cool:)
the animation of the tentacles is very good. maybe you could move the body a few pixels up and down, so that it would look like it is really moving somewhere.
Reminds me of pokemon