There are really any difference between this technique and Earth Release: Underground Projection Fish Technique? Both of them allows the user to travel underground, and both dont distrupt the earth when the user sinks in it. The only different thing seems to be that Kisame is able to extend Samehada above the ground, but I dont think that it´s really part of the technique... Im a bit confused with this technique :S--Kind-Hearted-One (talk) 16:54, March 4, 2010 (UTC)

The main point this move is that you turn the ground into a fluid like mud and act like a submarine.--Deva 27 (talk) 17:05, March 4, 2010 (UTC)
They have separate entries in the databooks. ~SnapperTo 17:37, March 4, 2010 (UTC)