Before long, you'll reach the chamber of the portrait's boss, Dullahan. He's a tough fellow with some very damaging attacks, but as long as you play smart you can get through the fight without much problems. We recommend using a powerful, arching sword (like the Claymore, which we found in this very portrait). Stand in front of Dullahan and attack with just the tip of your long sword. When you see the enemy pull back for a dashing thrust attack, perform a Lizard Tail slide away from the enemy to avoid getting hit. The attacks you'll most want to watch for come when Dullahan summons his head back to his body. As the enemy throws up a series of tracking projectiles that move to the top of the screen before chasing after you, run side to side across the arena to dodge the nasty shots. After four or five of these shots, Dullahan will toss the head towards in as it explodes into a swarm of projectiles. This is where the arching sword comes in handy, as a quick swipe of your blade can destroy the swarm of projectiles before they get a chance to touch you. After avoiding that series of attacks, return to dealing your own. The only other attack to watch for comes when Dullahan crouches back and prepares to leap into the air and down on top of you. As he leaps, move towards Dullahan and perform a Lizard Tail slide under him to avoid getting stomped on. A side effect of this counter is that you'll now be standing behind the enemy, letting you attack freely for a while.
Behemoth HP 800
There are a few attacks you'll need to look out for, including a charging rush across the entire play field. To avoid this bullish run, retreat to either far side of the arena and jump onto the platform you find there. When the Behemoth is near you, jump into the air to avoid him entirely. Return to the ground and back away from the passage through which Behemoth ran, as he'll soon be coming back. Also watch for some projectile attacks Behemoth spews out. Fortunately, you can destroy the projectiles with a well-timed sword swipe (an arching weapon becomes very helpful here). As well, Behemoth with perform a leaping attack that's not too unlike the jumping attack from Dullahan, who you fought earlier. When Behemoth launches into the air, run towards him and perform a Lizard Tail slide to safely scoot under the attack.
Keremet HP 666
Keremet, a large slime that lives in a steaming pot. If you approach the fight incorrectly, you'll have a hard time avoiding Keremet's attacks. However, the proper way to fight Keremet makes the battle ridiculously easy. As the battle starts, move the pot towards the right side of the room (you can summon your partner to help you and speed up the pushing). Move the pot near the set of platforms to the right, but not all the way under them. When you've got the pot in position, call your partner and leave her (or him) to attack the left side of the pot, using the Wait Cube. As that goes on, hop over the pot and onto the platforms that should be on the right side of the pot. After the pot's been hit a few times by your partner, Keremet will come out and launch a number of attacks—to the left. You'll be completely invulnerable while waiting on the platforms to the right, letting you unload any and all attacks you've got. We recommend not using any magical attacks, as they'll consume MP that your other partner is likely using when getting hit by Keremet's attacks. Before long, the enemy will die.