Devil May Cry 4 Mission 15 Fortuna Castle

Part 8 of the complete Devil May Cry 4 game guide.

Mission 15: Fortuna Castle

Head up the left stairs and hit the combat adjudicator there until you're all the way to SS level. This will grant you a blue orb fragment. When ready, head on through the door up from there.
Rather than the Frosts from both previous trips through this area, you will now meet Blitzes, a really rough new enemy. The hardest by a long shot in my opinion. Slicing him won't work at all while he's got all the electricity flowing around him. You have to shoot him (use Ebony & Ivory) and dodge his crazy electric beam and lunge attacks until his shield is down. After this is accomplished, you can finally get to slicing. Once you've sliced him a good bit, he'll get a new, red shield and start acting even more aggressively. He may attempt to lunge, grab you and then blow himself up for major damage. Use Devil Trigger if you get caught to avoid such a big explosion. Do your best, and continue on.
Enter the Grand Hall, head to the right to the first door on this level and go into the Gallery. Scour the area for orbs. Go out to the Library area, then jump up two levels on the third pillar down for some secret red orbs. Go inside, and fight a lot of Angelos.
Continue onward. You will see the ruins of a spiral staircase below. Move to the other side for the red crystal before jumping down. After you jump, Secret Mission 09 (really hard) is on the back of the bottom of the old stairs.
Once you've gone through that door, you'll end up in the Large Hall, though ice has sealed off every direction but the one into the Dining Room. Go there after breaking the candlesticks and chairs.
Go north, then turn into the actual dining room section to face a lot of Scarecrows and three Mega Scarecrows. As long as you keep hitting the Mega Scarecrows, they're pretty weak and the other enemies aren't really aggressive enough to get in your way. As before, though, watch out after you kill a mega scarecrow. Their blade may land on you. This fight should actually gain you health, from green orbs around the room.
Head counterclockwise in the Large Hall, getting the large green orb from in front of the ice and breaking the candlesticks. Go in the first available door moving counterclockwise. Rip the Frosts apart inside the Torture Chamber. Both Rebellion and Gilgamesh are really effective if you keep the Frosts on one side of you.
Fall down the huge hole here from before, get the green orb near you in a cage if you want, then hit the blue pedestal. After you've hit it, a blue platform will activate, allowing you to jump all the way up to the second floor of the torture chamber.
Head across the spiky ceiling you lowered earlier and go in the door to the Master's Chambers. While fighting the Scarecrows in here the Blitz suddenly attack. Go ahead and take care of the Scarecrows first. Try not to hit too many things in the room that may award health in the near future. Once you're in combat, do as before and keep shooting. Use Gunslinger style and hit Blitz with your O attack if he ever fails to hit you with his electrical beam. Slice him directly afterward, then avoid his suicide attack and he'll eventually destroy himself. Stick it out, hit everything in the room and use Devil Trigger. #TIP: The Blitz will apparently attack any remaining scarecrows through confusion, so you may not want to kill them first after all.
Outside in the Soldier's Graveyard you will find lots of breakable objects with powerups inside. Restock yourself and get ready for the upcoming boss fight with the Divinity Statue. The door to the boss is in the NE corner.

Boss #11: Dagon

Don't be confused, this is really the same as Bael. It's just one of his "brothers" he had mentioned before. He has the same attacks as before. In this case, the differences mean that you can't Buster his Rusalkas to pull him out. Instead, wait for him to jump out on his own. You can also now activate Devil Trigger to burst out of his mouth if he swallows you.
As it was with Echidna, you basically have to just slash like crazy to kill them, instead of using Busters as you did with Nero. Your reward for the fight is the Pandora, which you'll see used to incredible effect in the cutscene after the fight.
Drop down in the big pit after the fight. This concludes chapter 15.

Mission 16: Inferno

Be sure to check out the new Pandora upgrades available to you. As you can probably guess, this mission will end with Berial's demise.
You will be dropped down into a room with a poisonous gas that slowly drains your life. Despite this, there's a combat adjudicator in the room that only requires that you hit it for S level Stylish to receive a blue orb fragment. The green orbs around it will help you stay a while. Do that as quickly as possible then move on out to the east.
Cutlasses attack you here, and you can't Buster them out anymore. Therefore, the best you can do is shoot them until they're slow enough for you to slash. I would suggest shooting them with Ebony & Ivory, then using Stinger to quickly slash them, then make sure you hit them enough times to pull them up. After that, just keep hitting them so they don't go back down. I actually had less trouble here than I did with Nero, plus there are green orbs in the room to help you out.
The Speed ability most certainly helps in getting all the way down that hallway. You now move into the game room. Simply cut open the die. You don't have to deal with it as you did before. Instead, lots of Gladii will attack you. I'd suggest trying out your new Pandora on them, particularly where they clump together in the air or whenever they start spinning like they're going to launch at you.
Move on out the red door into Agnus' old containment room, where Gladii and Angelos will attack you. Use your Pandora a lot again, and Devil Trigger if low on health. Jump up once they're done. Stand where Yamato was for secret orbs, then finally head out to escape that poisonous gas.
Head up the stairs to the left at Foris Falls, breaking the barrels along the way. Go on ahead into the door. Angelos will attack you inside, so hit them from behind and feel free to blast them with Pandora. After you move on in the Angel Creation room, you'll fight two Altos with several more Biancos.
After you head south out of that room, you'll be told there's no more poisonous gas. Then you have to jump on the red platforms as you did with Nero here. Do so, then go down the long hallway.
In the Grand Hall, head up the stairs and out the painting. You'll be notified that the ice is gone. You can then get to a secret red orb stash just left of where you are (NW corner of the second floor) where the red orbs go up the wall. Do a kick jump followed by an Air Hike with Devil Trigger to get up to the secret red orbs on top of that wall. Now, go on down, break everything and then head out the front gate. Use the Divinity Statue if you need to, as you're getting close to the boss.
Just as Nero met the Frosts out here, Dante will meet the Basilisks. They resemble fiery dogs. Keep on the offensive and use Stinger a lot. They're not especially tough, but there are a lot of them and you don't want to get surrounded. Hit the smaller pillars around here for green orbs if you need to, then jump on the corner pillars as you did with Nero here for secret red orbs. The map will show a pathway out over the mountainside. More Basilisks will attack you once you get up to the right level. Keep moving along the mountainside south. Continue breaking the small pillars along the way for power-ups.
In the Second Mining area, just fall down the pit when you get to it. Break through the fence and the red crystal on that small western path. Finally, head south towards a boss battle with Berial.

Boss #12: Berial

Again, Berial uses the same attacks. You also no longer have Buster attacks. Just slash him a lot and his health goes down fairly quickly.
There aren't any buildings for health this time, so Devil Trigger is your only hope for healing during the fight. Also, get away when Berial is getting out of being slumped over, or else you'll fall victim to his powerful area attack.
You can also use the Disaster gauge you've been charging by using the Gunslinger O attack with Pandora out. There's no reason not to try that out here. Grab the red orbs once the cutscene ends, then head out south.