Devil May Cry 4/Cold Blooded

Library
Use your new found power from the anima mercury on the gyro blade. A tutorial will pop up if they are turned on. Smash the metal door and leave. Power up at the divinity statue outside if needs be, then go back to the gallery.

Gallery
All the orbs have regenerated so they can be collected again. However all the enemies have returned as well. With reenforcements. More scarecrows for easy, whilst they are followed by frosts and a blitz on hard. You can use the gyro blade for massive damage. After the web breaks go back to Main Hall.

Grand Hall 2F
Drop down to the lower floor.

Fortuna Castle Grand Hall 1F
Smash all of the furniture here and the coffin in the centre. There is nothing left to do here so leave via the eastern door.

Large Hall
You can now move the gyro blades in here. To advance all for of the pads in the centre of the hallway need to be occupied by a gyro blade. Two are already in position and a third can be gotten now, but it is easier to wait. Head to the dining room.

Dining Room
Kill all of the knights that are in here. The chairs and the table settings are breakable. Leave from the opposite side and activate the gyro blade. Push it down the corridor, staying behind to protect from the fire balls. Push it all the way into the end, smashing the fireball shooter. The exit is on the right, but the entrance to secret mission 2 is on the end.