Neochu (Final Fantasy XIII)

The Neochu is a very tough enemy in this game and is fought in two seperate missions; mission 55 and mission 45. Like it's weaker variant the Ochu, Neochu isn't fought on it's own as it can spawn ~4-5 Picochu to fight along side it when it's health reaches certain thresholds. They resemble their counterparts but has a brown colour theme instead of green. Fighting Neochu's are entirely optional and quite difficult, but the rewards for completing the missions are worth the effort. Mission 55 gives a growth egg that doubles CP gain from battle while mission 45 rewards the party with Hunter's Friend which casts Libra on defeated enemies. They are immune to pre-emptive strikes.

In Battle
Neochu's are very slow but also has some very strong attacks, some of which also inflicts status ailments. They have four attacks:

Screech deals high damage to the party.

Seed Dispersion which summons Picochu's.

Pollen which fully heals any Picochu's, grants them Brave and Haste, removes buff's from your party and inflicting Poison, DeProtect, DeShell, Imperil and Curse.

A basic attack dealing moderate damage and knocking it's target into the air.

Strategy
Before battle make sure all your characters have breaked, or are close to, 10,000 health. Place all the physical defense accessories and earth resistance accessories on the character who will be taking the most damage (SEN) and give the other characters accessories you think they might need. Shrouds are also very helpful, namely Aegisol and Fortisol.

Neochu's are immune to pre-emptive attacks and so are Picochu's. A Sentinel is nearly essential at lower levels as they will reduce the damage your entire party takes from attacks. A Medic or two is also essential. Recommended Paradims include Cerberus (COM,COM,COM), Consolidation (SEN,SEN,MED),Delta Attack (COM,SEN,RAV),Soliditary (COM,SEN.MED),Attrition (SAB,SEN,MED) and Strategic Warfare (COM,SEN,SYN).

Start off in Cerberus and attack the Neochu untill you need healing, then change to a paradigm with a MED or two depending on how much healing you need. SEN's reduce the damage your entire party takes as long as they're in that role. When the Neochu uses Screech immediately swap to Consolidation, once the healing is complete switch back to Cerberus. When the Neochu uses Pollen you should swap to strategic warfare or any paradigm with a MED to remove those status effects and re-buff your party. Haste, Protect, Bravery and Faith are the buff's you should keep up, then proceed to pumel the Neochu with an offensive Paradigm.

When the Neochu reached half health it'll use Seed Dispersion to summon 4 or 5 Picochu's. Make sure you have a SEN and MED out when this happens so they all focus on the SEN while the MED keeps them alive while the third member attacks them. Prioritize these things as they will deal a lot of damage in a short time, especially if they've been buffed by the Neochu's Pollen. When it's safe to swap paradigms swap to Delta Attack and focus on taking one Picochu out at a time, switching back if you need healing. The Neochu will buff them with Haste and Brave as well as fully healing them when it uses Pollen. If it uses Screech while you're dealing with the Picochu's swap to Consolidation and spam potions while the MED heals the party untill you're ready to change back. AOE damage is advisable when theres 3 or 4 Picochu's but single attacks are advidable to pick off any with low health. If a Piochu is at low health they'll use Plead on the Neochu which provokes the Neochu to use Pollen although this works rarely.

Once the Picochu's are dealt with, heal as necessary, casting re-buffs and removing ailments as necessary, then swap back to Cerberus. Change back to a paradigm with a MED for healing as nessessary and repeat untill he uses Seed Dispersion again (at quarter health) and repeat the same process untill they've died. If things get really bad use a summon as they'll fully restore your party once it's gone, and it'll add some extra damage to the enemies.

Once the Neochu is down, if there are still any Picochu's left, feel free to use Dispelga to remove any buff's they have and any ailments you have. Swap to Delta Attack or Cerberus to finish them off. Quake is also effective at dispatching them at low health if you've enough CP left.