Cubus Sisters

The are characters and NaN Bosss in.

Characteristics
The PH: appear as four young human girls, identical in appearance but dressed in differing colors, who are encountered on the PH:. PH: finds the sister in red cowering in a corner on the first floor while a group of NaN Poes haunt the area. Once the NaN Poes are defeated, she introduces herself to PH: as the youngest daughter of the House of Cubus, having been kidnapped along with her three older sisters and held captive on the PH:. She somehow has knowledge of PH:'s name and his quest to rescue PH:, and seems relieved that a hero has arrived to save her sisters as well.

Each of the three remaining NaN Cubus Sisterss can be found in a cell on the three respective floors of the PH:. PH: must free the sisters and lead them one-by-one to where the youngest sister awaits on the top floor. If PH: gets separated by more than a short distance from the girl he's leading, or if a PH: descends into her line of sight, she'll begin to cower in fear and require PH:'s reassurance to continue.

When speaking to the NaN Cubus Sisterss, they will occasionally show signs of their true, evil nature, either by giving PH: poor advice, or through a simple slip of the tongue. Once the four girls are reunited, they will gather around and hiss at PH:, sharing disbelief that he survived the NaN Reaplings and the PH:'s various traps, and declaring that it's time to "play extra rough". They transport PH: and themselves to the PH:'s deck and reveal their true forms.

Battle
The battle against the PH: takes place across both screens of the Nintendo DS, with the sisters flying around overhead. The youngest sister will launch balls of energy down at PH: in a game of PH:, while the others fire beams of light that PH: must avoid. After outmatching the youngest sister and striking her with her own energy ball twice, she will be defeated and the remaining sisters will continue the battle.

With three or fewer left, the sisters will begin to pass the moving energy ball between themselves several times before returning it to PH:, in an attempt to disorient the hero. The first sister to be struck by the ball twice will be defeated. When two sisters remaining, some of the energy balls they launch will be decoys with a different appearance, which will split apart if PH: strikes them with his PH:, likely causing him harm. The final remaining sister will launch three energy balls toward PH: at once; two decoys and one real one. The final sister must be struck three more times before she'll fall, feign congratulations, then disappear, leaving behind the PH: needed to enter the PH:'s hull where PH: is trapped.

If PH: does not obtain the PH: from the PH: before leaving the PH:, it will be mailed to him by an unknown sender. The PH:'s phrasing suggests that it comes from the PH: themselves.

Manga
Only one of the Cubus Sisters makes an appearance in the. She is first seen briefly in Linebeck's flashback. On the Ghost Ship, the Cubus Sister carries a platter of food, and thanks Linebeck's crew for saving her. Although, the crew is soon cursed and turned into monsters, causing Linebeck to flee by himself.

The Cubus Sister is seen again sobbing next to Tetra, who has been turned to stone. She introduces herself to Link, and says that she was kidnapped by the Ghost Ship and rescued by Tetra. The Cubus Sister begins crying again, and explains that Tetra took her place and was cursed. Link asks who cursed Tetra. The Cubus Sister responds that the living dead below deck did so. Linebeck then confronts the two, commenting that the Cubus Sister is tricky as ever, and asks how many sailors she lured this way. The Cubus Sister calls Linebeck a coward, and asks how he can criticize her after abandoning his comrades. The Cubus Sister continues, telling the captain that his comrades were all captured and cursed, and that they wander below deck screaming their hatred for him. Linebeck falls to the ground and calls her a devil. She tells the captain that she will take him to join his comrades, and transforms into her demonic form. Before the Cubus Sister can harm Linebeck, Ciela, Leaf, and Neri attack her. Link defends Linebeck, although the Cubus Sister says he will betray the hero as he did his shipmates. Link demands the Cubus Sister return those she cursed to normal. The Cubus Sister claims it is too late, that once he enters the Ghost Ship he is already lost and will join the living dead. The demon begins attacking Link. In an attempt to finish the hero, the Cubus Sister aims an energy ball at Link, but hits Tetra's statue instead. Princess Zelda comes out of the statue, and reflects the energy ball back to the Cubus Sister. The Cubus Sister charges Link, outraged at being hit with her own power. Link then defeats the demon with his sword, ordering her to return to darkness and never come back.

Trivia

 * In the Japanese version, the PH: only made sounds when they fired energy balls. They were given a sound for receiving energy balls and dying in the international versions.

Nomenclature
The name "Cubus" may based off of the word, which refers to a female demon which seduces men in order to steal their life force.