9th Child

9th Child is the final boss of the game. They are at the very end of Spiral Hell.

To initiate the battle, chant all 10 Mantras simultaneously with the Djed Pillar.

Form 1
Its first form is a large ghostly figure with three tails similar to the Mother's second and fifth forms from La-Mulana. It will move left and right across the arena, and will occasionally drop into the ground, which will sprout two tentacles under Lumisa.

You can take this phase down with either your main or sub-weapons, and it is vulnerable while it is on the ground or in the air. However, it's recommended you save your Bombs and Flares for later forms. Avoid taking damage during this phase, as you'll need as much health as you can get for the next ones. It should go down in about 8 to 10 hits with a ROM-buffed Steel Ball Whip.

Form 2
The 9th Child's second form appears like a giant worm that burrows into the ground. Parts of its body can be walked on like a platform, and platforms will rise up out of the ground (similar to in Hel's fight). It can attack with its sword-like tail and with hands that sprout from the ground, which will shoot lightning wherever they point. Damage can only be dealt by attacking its face, which deals no contact damage. There is also no danger of being crushed underneath its body.

Like the previous form, this phase is rather simple. Just stand underneath its face wherever it appears and whale on it. It should go down quickly if you have the Flail Whip, Gauntlet, and Vajra. Equip Mjolnir if the lightning is giving you problems.

Form 3
This form changes the battle arena to about two screens tall. Its weak point, its eyes, are at the top of the arena, but they're covered with a mask. Equipping the Djed Pillar and chanting Sól and Máni simultaneously while it is on-screen will remove the mask. Its eyes will shoot lasers at you, and it will grow eyes from the left and right which will also shoot horizontal lasers at you. The lasers will start out thin and deal no damage, and then grow wide and deal medium damage. It will also spawn tentacles alternating on the right and left sides of the room which can be used as platforms to its weak point.

Defeating the previous form will cause a few platforms to rise from the ground. Ride them up and use the Djed Pillar before you get smooshed by the ceiling. Then, immediately jump to the right: this is where the first tentacle platform will spawn. Once its stone mask falls off you can attack it. You can use your Whip or Flares. Alternatively, it can be beat by chucking two or three Bombs at it.

Form 4
Upon beating the third form it will take on a ghostly appearance similar to its first form, only much smaller. This form is similar to the final form of the Mother in La-Mulana, where as you deal more damage to it, it will gain attacks used by a guardian you've previously defeated. The attacks it gains are listed in order below:

Fafnir: It will fly left to right, firing boulders above it. The boulders move through platforms.

Vritra: It will fly to one side of the room and shoot two slow-moving spinning fireballs at Lumisa.

Kujata: It will fly to the top center of the screen, and fire boulders above it. These boulders will fall down, breaking into small fires when they hit a platform or the ground.

Jormungand: It will fly left and right, firing flares at Lumisa. These are slow-moving, and will deal damage upon exploding.

Anu: It will fly up high, throwing spinning blades that roll down the platforms and around on the floor. These can be destroyed by attacking them.

Aten-Ra: It will fly to the center bottom of the screen then move straight up, summoning a ghostly version of Aten to fall down and crush Lumisa.

Surtr: It will move to one side of the screen and raise its arm towards the center. This causes a large tentacle to come out of the side of the screen underneath it to "punch" Lumisa.

Echidna: It will move in a triangle around the room then to the center, and fire three high-damage lasers that will rotate in a clockwise or counter-clockwise fashion.

Hel: It will fly above Lumisa and throw two spears at her.

After it gains four attacks, it will only repeat the last three attacks it has gained in the reverse order she got them (E.G., after gaining Hel's attack, it will throw spears, shoot lasers, "punch" you, throw spears, etc.). Note that the 9th Child is invincible while gaining a new attack; this includes right after you've dealt enough damage to trigger its stun animation.

Flares and Shurikens are helpful here. It takes about 10 Flares with the Ring to make it move on to the next attack. If you're having trouble with a particular attack, two shots with the Pistol will force it to move on.

Once you've dealt enough damage after it gains Hel's attack, it will start using all of its attacks in a seemingly random order. Keep on attacking it and the 9th Child will eventually fall down.

Use the Beherit to release the collected dissonance of Eg-Mulana and prove your murderous intent. This will finish off the 9th Child and start the escape sequence.