Ninja Gaiden BLACK: Hint - Gold Essence Farming

If you follow you would be able to upgrade all weapons, and max out all your items, except for Ninpo.

At the chapter where you start to chase Doku's spirit in th maze after you use the griffen key to open the gates, Ayane throws a dagger saying something about using your flail to destroy the ghost fish. Instead of using your flail use the dragon sword, and keep jumping back and forth tapping the (x) button in the air.

The move is called ( air destruction slash ) once all the fish are destroyed just go back to the gate and then head back in all fish would be back, and if you do it right i guarantee you wouldn't loose any life, unlike the flail, because once the combo is done the fish have a chance to attack you, while with this technique they wouldn't and also because jumping around causes Ryu to absorb the yellow essence as soon as they come out, it is alot better than using the flail and then waiting for all the fish to be destroyed and then to get it because by the time there all destroyed most of them would have dissapeared.

I've done it more than once and maxed out everything...