Ninja Gaiden II/Chapter 6: The Lycanthrope's Castle

"The canals running through this city lead to a giant castle, a once beautiful architectural legacy now transformed into the lair of the Greater Fiend Volf. Volf's iron fist reigns over an army of werewolves. He is a Berserker, as bloodthirsty as a beast, and his never-ending hunger for battle has led him to prepare a fitting arena for a duel to the death with the world's most powerful Ninja"

Part 1: Water Cavern
If you missed the chests listed prior to the boss fight in the last chapter, don't despair. Now is your chance to collect them. There is one in each of the collonades.

The cutscene at the beginning of the chapter will reveal the way out of this water cavern. Head back to the platform where you began the boss fight in the last chapter, facing in the same direction as you were when the fight began. Drop into the water and head left toward the large staircase. In between two columns will be a section of broken column to stand on. Jump up on it and perform a Flying Bird between the two pillars on either side. At the top, you should see a Muramasa statue to your left. Go right up the slanted roof and look left and down when you reach the top. On a small ledge just below is a Crystal Skull (#13). Drop down and collect it. Head back onto the roof and left to find a small hole in the roof containing a chest with 30000 Yellow Essences. Nice. Go to the Muramasa statue if you wish and take out the Ghost Fish here.

To the right of the Muramasa statue is a break in the wall. Time for some platforming. Head onto the pillars above. On the second pillar, kill the Ghost Fish that swarm you, being careful not to drop into the water below unless you like the idea of swimming back to the colonnade and starting over. At the top of the archway take out several more Ghost Fish, then head to the left edge, across the pillars and to the ledge beyond. Head left when you reach the ledge, kill the Ghost Fish here and open the chest for an Herb of Spiritual Life. Head back up the path along the ledge until you reach a gap in the ledge. Wall run across.

When you reach the opposite ledge, you will be attacked by several Water Scorpions. Take them out and proceed along the ledge and left to find a chest containing Red Ki Essence. Turn around and head toward the circular pillar structure ahead. Jump across onto the platform supported by the pillars. Several Ghost Fish will appear when you land. Walk around the structure and they will swarm you. Attack them and jump to the next series of pillars. Open the chest on the large pillar to the left for a Devil Way Mushroom. Jump onto the platform and through the door. Save/heal at the Dragon Statue here. Head into the cave to be attacked by a group of Water Scorpions. Progress farther to be attacked by another group of Water Scorpions. Search the corpse in this room to receive a Jewel of the Demon Seal to upgrade one of your Ninpo. Head to the door at the end of the cave complex.

Inside is a rather ominous pile of bones. Run around the pile for a while and you will be attacked by a large cluster of Skeletal Scorpions. Defeat them and then continue running around the room for a while. Eventually a cutscene will trigger and you will be in for a Miniboss fight.

Miniboss: Skeleton
At first, this boss appears overwhelmingly difficult. His attacks deal heavy damage and stun you. He will grab you if you get close. However, if you spent some Yellow Essence on a full upgrade for your Kusari-gama, this boss is cake. Run around behind him and just start drilling him with your Y combos. Eventually he will fall down. When he does, repeatedly attack him with Y. He will get up and shove you into his mouth and run into a nearby wall. When he does, this spells his end. After Ryu extricates himself from the creatures mouth, turn immediately toward him and start spamming him with Y combos. Lather, rinse, repeat. Fairly simple. A short cutscene will follow.

Part 2: Caverns
After the Miniboss falls, the blocked shaft that you probably saw before will be unblocked. Enter it and perform a Flying Bird to reach the top. Run along the ledge until you reach a broken bridge over a gap. Do a wall run to cross the breach. When you reach the large ledge ahead, several Water Scorpions will attack. Kill them and open the chest here for an Herb of Spiritual Life. Continue along the ledge to another breach. Wall run to the top ledge where you will be attacked by a few more Water Scorpions. Kill them and head through the door. Just inside, several Skeletal Scorpions will attack. Kill them off quickly and head into the open cavern. Here you will be attacked by more Water Scorpions. Open the chest here for another Herb of Spiritual Life. Continue through the tunnel ahead, killing Skeletal Scorpions until you reach a gap. Perform a Flying Swallow to cross it. You will immediately be attacked by more Skeletal Scorpions. Kill them and then wall run across the right wall to bypass the next gap. Enjoy another skirmish with some Skeletal Scorpions. Head up the tunnel and fight several more Skeletal Scorpions. Halt when you reach the brick shaft. This part is a little tricky. Wall run to the opposite wall in whatever direction you choose, just keep it up. Flying Bird your way out.

When you reach the top, you will be beside a guillotine. Slice the rope beside it to reveal a Crystal Skull (#14). Use the Dragon Statue here for a much-needed save/heal.