Among all the formidable bosses in Armored Core 6, none posed a greater challenge than the Coral-powered IB-01: CEL 240 encountered at the climax of Chapter 4, aptly named “Reach the Coral Convergence.” This adversary combines incredible speed with an unprecedented level of power, presenting a new level of difficulty compared to prior encounters in the game. To compound the challenge, the boss employs a notorious tactic employed by FromSoftware—resurrection. If barely surviving the initial form of this boss tested your limits, the even more demanding second form might have led to feelings of despair or controller-flinging frustration. However, I assure you, there is a way to overcome this trial.
My hours of experimentation yielded diverse strategies for conquering the Ibis Series CEL 240 (I even named a mech build “HOPE” at one point, a futile attempt in hindsight). Eventually, I unearthed an approach to the battle that I confidently recommend to anyone grappling with this particular hurdle. Presented here is the optimal loadout to tackle the Coral Convergence boss, as outlined by pcgamer, along with tactics to secure that sought-after sense of triumph.
Ideal AC Configuration for the Ibis Series CEL 240:
- Arm Weapons: Detonating Bazooka
- Back Weapons: Songbirds
- Head: VP-44D
- Core: BD-011 Melander
- Arms: 04-101 Mind Alpha
- Legs: EL-TL-11 Fortaleza
- FCS: FCS-G2/P05
- Generator: DF-GN-06 Ming-Tang
Two distinct approaches can be adopted to engage in this confrontation. One adheres to the classic FromSoftware philosophy of mastery: refining dodges, strategically launching attacks during brief safe periods, and prevailing in the long haul. If this path is chosen, the AC build becomes less critical. Alternatively, my recommendation diverges from the traditional ‘git gud’ mindset, instead favoring an AC tailored to expeditiously dismantle the Coral Convergence boss.
After extensive trial and error, the aforementioned configuration proved most effective against the Ibis Series CEL 240. Compact tank legs confer enhanced mobility, heightened durability, and the capacity to accommodate four potent explosive weapons. While mastering the art of hitting with these armaments poses a challenge, precise timing ensures that each volley disrupts the boss’s stability, enabling significant follow-up damage. (Should any frame components be absent, improvisation is possible to field a mech capable of hosting two detonating bazookas and two Songbirds.)
For an added advantage, consider reallocating your OS Tuning to maximize repair kit utilization, damage mitigation, and explosive potential. Additionally, acquiring two uses of Pulse Armor bolsters your offense. Though the aggressive Assault Armor proves efficacious, it carries substantial risk.
Strategies to Overcome the Coral Convergence Boss, Ibis Series CEL 240:
- First Form: A charging laser beam inflicts roughly 2600 damage. Evading at close quarters is challenging, but with practice, you can seize the narrow window during its charge to pummel the boss with Songbirds, thwarting the attack.
- First Form: Coral Slashes—Among the first form’s most perilous assaults, the boss releases a sequence of airborne slashes with potential to decimate your health bar. Employ lateral circle strafing and Quick Boost maneuvers. This maneuver gains greater potency in the second form.
- Second Form: Coral Fan—The boss forges energy swords, sweeping them in a spinning arc. Execute rapid Quick Boost to evade.
- Second Form: Coral Manta Ray—As the boss dips below 50% health, it transforms into a Coral energy manta ray, capable of instant elimination upon contact. Awareness enables straightforward evasion: initiate a high jump, descending as it passes beneath. While midair, the risk diminishes; Quick Boost serves as insurance.
Quick Tips for Tactical Success:
- Until the boss’s movement patterns are mastered, stagger Songbirds shots by a brief interval—firing both simultaneously might diminish accuracy.
- Optimal performance with this setup necessitates remaining grounded, as the tank treads lack aerial agility.
- Triggering stagger with one Songbirds and one detonating bazooka empowers substantial damage via subsequent volleys.
- Mobile tactics often yield results: keep moving, cycling through shots. Hits can be achieved even if the boss is temporarily off-screen.
- If the initial volley falls short, do not hesitate to restart within the opening three seconds.
The crux of battling this explosive-armed boss lies in capitalizing on high-impact strikes. Although challenging to execute, the payoff is significant. Opportune moments materialize when the boss relocates across the arena or recuperates from its prior attack.
Practice the fight initially not for victory, but to discern the timing—recognizing when the boss pauses and evades bazooka fire. The best chances arise when the boss is airborne after launching an attack.
While the boss can evade consecutive attacks outside an animation, sequential shots with a slight stagger usually land. Risky at close range, the splash damage from explosives is nearly guaranteed. Upon the ACS meter flashing red (indicating stagger), unleash off-cooldown weaponry.
Reserve Pulse Armor for the second form—roughly 10 seconds after revival, activate the first to grant a breather as the boss recommences the fight with enhanced intensity. The approach remains unchanged, featuring evasion against slashing attacks and capitalizing on pauses for massive damage output. Following the manta ray phase, exploit the vulnerability to unleash a devastating onslaught.
The video above portrays a swift victory in this boss battle. However, this snapshot omits the numerous failed attempts; yet, it highlights an advantage of the strategy—an abbreviated fight duration, minimizing frustration.