They are every were so wathch out
You have to dress like one of the guards to pass them, but you have to walk like regular people do.
use your ninja stuff and be quick and don't let the guards see you
in red dragon island you need to go to the bonsai hut to get a kimono from the lady and the kimono has a passport in the pocket that will let you get past the guards
in the same place you get the kimono and passport or you can say that its before you see the guards
You have to recieve training from the ninja master is the little hut near to water.
You get past through the guards while trying to get the keys to the door, and then you use your magic necklace to get out.
go in the building and cut the bonsai tree and she'll give you a robe then they will see you are from there and let you by
go to the west stairs and jump all the way up on the right side and defet the guards
To beat red dragon island, simply beat a red dragon. Don't forget to swallow.
in red dragon island
you find it on red dragon island
After receiving your ninja training and reaching the fortress, slippast the guards there and free Jack and Annie. When the Red Dragon is unleashed by the Shogun, travel to Mount Fuji and ride the Cloud Dragon, which can extinguish both the city fires and the fire lifeforce of the Red Dragon. (For a full solution, see the related question.)