Nuculais is an optional powerful boss in Castlevania: Curse of Darkness. He is a giant of light, born in the core of the Legion. His body is still imperfect due to being born before it was fully formed. He appears as Legion's second form at the lowest depths of Garibaldi Temple.


Nuculais is a gigantic humanoid whose body is composed almost solely of light. This makes him extremely resistant to Light-based attacks, but also weak to Dark-based ones. Due to his body not being fully formed, it lacks any facial features and his hands and feet haven't developed fingers and toes yet. The cohesiveness which maintains his body together appears to be unstable, which allows him to stretch his limbs or grow to gargantuan proportions for brief periods of time. A more developed part of his body is his heart, which protrudes out of his chest along with some partially formed veins.


Legion's core before Nuculais bursts out.

For the second part of its boss battle, Legion will actually be in (somewhat) human form and will no longer be immobile. It's advisable to forge and bring a 7 Bladed Sword for this battle, as it's the only Dark element-based weapon in the game and it can inflict heavy damage to Nuculais with just a few swings, much more than with the Laser Blade. It's also possible (but harder) to forge Death's Scythe and inflict massive amounts of damage to the boss in just a few seconds.

It's a good idea to use an Innocent Devil as bait for this battle. Set one of your Battle-Type Innocent Devil's to "Guard" mode and the boss will, most of the time, go after it allowing you to attack him from behind.

This boss has several attacks, most of which can be blocked. He'll teleport around the room constantly by summoning and jumping into a big puddle of lava and then rising out from another one somewhere else in the room. The lava is blockable, but the irritating part about this move is the fact that it will sometimes catch you in the middle of an attack if you're not cautious while attacking him. If he jumps at any time, then get ready to guard or dodge.

His other moves are a blade strike (blockable), a grab in which his arm will stretch out toward you (this must be avoided by rolling), several punches (he usually chains about four punches together, which can be blocked) and a move in which he will summon a bunch of dead bodies and hurl them at you. When he summons these, block the first set he throws at you, roll and quickstep from the second set and, for the third set, block the first few bodies, then roll and quickstep to avoid the move completely.

He also can project a purple beam which must be avoided as well (roll or run constantly). If you have your Battle-Type Innocent Devil in "Guard" mode, step into his shield and it will protect you from the entire beam attack. Another useful strategy is to have a Mage-Type Innocent Devil set to block. Nuculais will aim below the Innocent Devil and, as long as you don't stand in the way, it won't hit either of you. Hit him sparingly throughout the battle and watch for his attacks. The only time in which you can usually perform a full combo safely is when he recovers from a physical attack (punch or blade strike).

Once he's down to his second bar, he'll start digging in the ground. Run up to him and perform full combos while he searches through the floor. He'll finally pull a dead body out of the ground and absorb it, causing him to grow to gargantuan proportions. While he's like this, he'll have very few attacks, although he can be extremely hard to hit without getting damaged. Each step he takes creates a shockwave on the ground (these can be blocked). When he jumps, he'll create a gigantic shockwave that will reach further than usual (jump to avoid it). Summon an Innocent Devil with a strong projectile move and have it fire upon the boss. Eventually, he'll shrink back down to normal size and the fight will continue as normal until you defeat him.

How to steal

Perfect Guard his "arm grab" attack, then run toward him and steal. Yields the Napoletana, which restores 125 HP.

Enemy Data

No. Name JPN HP
149 Nuculais ヌクレアス 8,875
Tolerance Weakness
Light Dark
Location Drop Steal EXP
Garibaldi Temple Crest
(Trevor Mode only)
Napoletana 5,370
Description "A giant of light, born in the core of the Legion. Imperfect due to expulsion before fully formed."

Item Data

Item Data: Nuculais
Image Name - Game
Type / Users Attributes / Consume Statistics / Sell Found Notes
Napoletana.png Napoletana - Curse of Darkness [edit]
Pasta cooked with ketchup. Watch out if you're wearing white. Food
HP +125
Sell: $1 
Steal: Nuculais Lv.53
Crest.png Crest - Curse of Darkness [edit]
All stats increased. Pick-Up
Trevor Belmont 
ATK +5, DEF +5, HP +50, Hearts +5
Find: Aiolon Ruins, Dracula's Castle
Drop: All bosses, excepted Isaac's second fight, Death and Dracula.
Conditions: Item disappears if the player does not pick it up before leaving the Boss Room. 


  • Legion/Nuculais has the highest HP amount of any enemy in the Castlevania series, with a total of 15,775 HP (6,900 of Legion + 8,875 of Nuculais).
  • It's ironic that while Legion is a Dark-based monster, Nuculais is Light-based, resulting in both contradicting each other.
  • During Trevor Mode, players will find that Nuculais is more challenging to beat, as Trevor lacks the ability to summon familiars to distract him, leaving all the monster's attention on him; hence, a different strategy than the one used with Hector is needed for defeating the boss. In Boss Rush Mode, it becomes even harder to beat, as Trevor cannot heal himself.
  • The name "Nuculais" may be a mistranslation of ヌクレアス Nukureasu (Nucleus), which would make sense as he was "born in the core of the Legion".
  • Nuculais somewhat resembles the angel Adam from the Neon Genesis Evangelion series, in addition to both being referred to as "Giants of Light".

See also

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