well first you go onto the question how do you beat red dragon island. follow that until the Wrestling arena part. do that part and after you beat the sumo wrestler you see the old poet witch is really Basho a ninja master you heard the name of before then he gives you ninja training when you are done you have to put together a wall for no apparent reason then he lets you go so you head to the locked fortress and use your ninja skills to get into the fortress then you have to get passed the levels there are 3 levels
the fortress is up the first stairs(the locked thing)
it is in east edo up the stairs.
Red Dragon Island is out?!
3
The fortress is in the East Edo. It has someone up there wishing you good luck.
The fortress is the castle that is in the second zone to right from bashos house its up the stairs. :)
There is a rotten fish on the Fortress steps.
There is a rotten fish on the stone steps of the Fortress.
eat a banana then use the bathroom
In West Edo, left of the Fortress in East Edo.
up ur booty around the coner
You never go through there. Once you are a ninja, you can climb the cliffs and infiltrate the fortress.