Start moving right, this corridor has just two ravens enemies in it to deal with. Go through the door and you'll enter a small room with an evil knight in it. Kill him and then use the rope on the right to move up, and jump on the moving platform. Let this platform carry you across to the left, then go up the rope in the top left corner of the screen.

In the next room, jump off the rope and then jump up the steps. You'll then get to the first of many ropes with spike balls on them. When you jump on these, they'll start moving you up, where there are spikes waiting, so quickly jump off them and make your way across. There are also some vampire bats to kill in this area.

Keep going right and you'll find a couple of evil knights on some small platforms, try killing them at a distance. Once they're dealt with, there is a small platform which moves up and down, jump on this and then go on the rope at the right. In the next room, continue up the rope until you're about half way, then quickly keep jumping to the left, using the ropes to get across this room. Once on the platform, use the rope in the upper left to get to the next room. Kill the punaguchi and then go through the door.

There's not much you can do in the next room other than use the rope, so head down. In the next room you'll face against several spikes, which will keep moving up and down. Time your jumps to get across the room via using the ropes, the spikes don't raise all the way to the top, so as long as you stay near the top of each ropes you should be fine. Use the rope on the far right to get to the next room, and kill the waiting vampire bat. Then use the ropes to climb up.

In the next room, note the pulley system -when you jump on the first rope, it will start moving down, whilst the rope next to it moves up. You'll need to quickly jump across to the floating platform, and then use it to grab the rope in the top left corner. Go up this rope to enter a small room, which has a couple of octos in it. Kill them and then climb up the rope on the right. The next room has another pulley to deal with, only this room has two floating platforms in it, so be careful with the timing of your jumps. Use the rope in the top left corner to get out of this room.

There are a two floating platforms in the next room, one of them has a punaguchi on it. Kill it and then head through the door, the next room just has a couple of candles in it so use the rope on the right and go up. The next room has a knife lizard in it, kill it and then go up the rope on the left.

The next room is quite a large one, which features several pulleys that have constantly moving ropes on them -every few seconds the ropes will change direction, so be prepared to jump around a lot as you make your way up. There are some platforms to use in the middle of this room, which have evil knights on them. Kill them and continue upwards.

You'll be near the top of the room when you see four pulleys in a row, use them to get over to the rope at the top right. Go up this and enter a room that contains a single punaguchi in it, this one can be a bit of annoyance since it's projectiles can get in the way of the rope you need to climb up. Kill it and then head through the door, which will take you outside. Use the two floating platforms to get over the bottomless pit.

The next section involves the use of several floating platforms to get over pits. Enemies here include vampire bats and punaguchis, kill everything you come across and keep heading right.

After the last floating platform, drop down and head right, where you'll find a strange looking wall. Collect the crystal to reveal Angel Mummy, the Lord of the Cloud Castle. Angel Mummy is a twin-headed monster which has an unusual method of attack...

...where it will throw out its vertebrae from one head to the other. The vertebrae travel in a arc motion, and the boss will keep doing this attack throughout the battle, so you'll need to use the two small platforms to avoid taking damage. Angel Mummy can also throw fireballs at you, but these are small and fairly easy to avoid. Keep whipping the skulls of the boss as this is its only weakpoint. Once Angel Mummy has been defeated, its heads will explode.