Devil May Cry 3: Dante's Awakening/Faded Memories

Defeating this boss is difficult and requires a methodical approach.
 * Boss — Nevan


 * Preparation
 * Buy 2x "Vital Star L"
 * Equip Cerberus, Rebellion, "Ebony & Ivory", and Spiral
 * Use the Gunslinger or Trickster style
 * Revolver Level 2, Stinger Level 2, Air Hike (Rebellion)

Description
Nevan teleports a lot and is surrounded by a shield of bats. Damaging her requires you to destroy the bat-shield first. Cerberus and "Ebony & Ivory" are best suited for this task. These recommended weapons are fast and Nevan has an elemental weakness against Cerberus. After every one of her attacks, engage her with Cerberus combos (and maybe while in Devil Trigger mode). You have time to execute one combo between the interval of two of her attacks (when she is laughing you can execute two combos).

Once her bat-shield is destroyed, a black circle will form below her and slowly be augmented. She is temporarily stunned and you have 1.5 seconds to attack her with Cerberus combos while in Devil Trigger mode. If you successfully do this, you get another 3.5 seconds to hit her. At the end of these few seconds, her eyes will turn red and she will transform into a damaging black orb (dodge with Air Hike/Sky Star). She will warp to one end of the hall and regain her bat-shield.

During the fight, remember that you can use the Rebellion's Stinger attack to get close to her.

Nevan
There are three attack algorithms used by Nevan. Each one uses a randomized series of attacks that are preceded by a short cue speech. Some gamers have claimed to see a pattern in her attacks. One such claim is that the "Ascending Electric Vertical Beam" is often followed by the "Concentrated Electric Bat Burst."

Every time her health decreases by roughly a third of the initial health, the attack algorithm upgrades to a new attack pattern.

Stage 1 attacks
She will start a spin dance whereby she is circumvented with damaging black blades. Stay away from her spin radius and shoot her with "Ebony & Ivory" or taunt her (to build up DT) during the dance. In Stage 3, this attack lasts longer.
 * Spin Dance
 * Damage: Medium
 * Cue speech: "Get ready!"

She throws electrical balls at you. Walk/roll/dash away from the projectiles. In Stage 3, she throws more bats.
 * Throw of Electrified Bat Balls (light purple)
 * Damage: Low/Medium
 * Cue speech: "How's this?"

She flips back slowly and black spikes appear in front of her and start chasing you. Dodge with Air Hike/Sky Star/shooting in air/roll, dodge to the right/left or run back.
 * Chasing Black Spike-Tide/Blades
 * Damage: Medium
 * Cue speech: "Hm-hm-hm-hm!" (short cute laugh)

A circle of white light appears below where you are standing on the ground and shoots up an electric vertical column. Dodge with Air Hike/Sky Star/running/rolling away. In Stage 3, she summons more of these pillars.
 * Ascending Electric Vertical Pillar Beam
 * Damage: Medium
 * Cue speech: "Now you will become tired!...ha!"

She charges purple electricity in front of her and fires a concentrated electric bat burst at you. Dodge with Air Hike/Sky Star/rolling. This attack is quick and damaging if you don't dodge an entire array will hit you.
 * Concentrated Electric Bat Burst (dark purple)
 * Damage: Medium
 * Cue speech: "Don't you like me?"

Stage 2 attacks
These attacks come from above.

She is on one end of the hall and electrifies the floor. Initially, the floor only flickers with electricity. Dodge with Air Hike/Sky Star and fire "Ebony & Ivory" in the air.
 * Electrified Floor
 * Damage: Medium
 * Cue speech: "Hahahaha!" (evil/scary laugh)

She is in one end of the room with horizontal lightning beams in front of her that she will shoot at you. Wait until the system has registered your position at one side, then Air Hike/Sky Star/run to the other side (the side not occupied by the moving beams). Repeat this procedure with the vertical beams that follow.
 * Horizontal and Vertical Lightning Beams
 * Damage: Medium
 * Cue speech: "Are you enjoying yourself?"

Stage 3 attacks
The exacerbated versions of the attacks from above.

Very dangerous attack that absorbs a lot of health from you, if she manages to touch you without you being in Devil Trigger mode. After a strident noise and some red smoke, she warps into the center of the room (without the bat-shield and miniaturized), stretches out her arms, and chases you. Wait or run a way from her when she approaches you. When she is close, Air Hike/Sky Star over her and fire "Ebony & Ivory" in the air (or go into Devil Trigger and Cerberus combo her in DT). The timing of the jump is crucial. Right after she has the disappointed appearance and says "hmmmmmm," attack her with Cerberus combos in Devil Trigger. She is vulnerable while she is performing this attack. Alternatively, use Devil Trigger to Cerberus combo her from the start (unconfirmed). If you get caught, activate Devil Trigger immediately.
 * Life-Draining Blood Sucker Kiss of Death
 * Damage: High
 * Cue speech: "You cannot escape from me!/Come, sugar!"

In Stage 3, her bat-shield regenerates at a very fast rate. To deal with this, there are two approaches:
 * 1) Use Devil Trigger while attacking the bat-shield with Cerberus combos.
 * 2) If you consistently stay at the center of the hall in Stage 3, she will only attack with the drainage kiss, where she is vulnerable without the bat shield. While you dodge the blood sucker attack, fire at her. It will take a decent amount of time to empty her health this way.

After defeating her, you gain 5,500 red orbs.