The encounter with the IB-01: CEL 240 serves as one of the most intense tests of skill in Armored Core 6. Serving as the final obstacle in Chapter 4's Reach the Coral Convergence mission, this autonomous C-Weapon combines extreme aerial mobility with devastating energy attacks. Understanding its complex attack patterns and tailoring your assembly specifically to counter its speed are essential steps toward securing victory.
Recommended Mech Assembly and Loadouts
Defeating this agile boss requires a heavy focus on high impact and staggered burst damage. Utilizing heavy explosive weaponry such as Songbirds shoulder cannons paired with Detonating Bazookas allows players to capitalize on brief openings. Heavy bipedal setups or compact tank chassis, such as the Fortaleza legs, provide both the load capacity for heavy gear and high ground mobility.
Alternatively, equipping dual Stun Needle Launchers alongside high-impact shotguns can rapidly build the boss's stagger gauge. Keeping your FCS tuned for quick lock-on acquisition ensures your heavy shots connect when the opportunity arises. Maintaining optimal EN recovery rates will keep your mech mobile enough to evade incoming projectile cascades.
Mastering the First Phase Attack Patterns
During the opening phase, the IB-01: CEL 240 aggressively circles the arena while unleashing laser barrages and energy slashes. Continuous sideways strafing on the ground is generally sufficient to avoid standard laser volleys without wasting precious energy. The primary window for attack occurs when the boss briefly hovers in mid-air to charge its heavy beam attacks.
Firing your heavy explosive or stun weapons right as the boss pauses will frequently interrupt its attack and trigger a immediate stagger state. Follow up aggressively with your primary arm weapons while it remains immobilized to strip away large portions of its health bar. Patience is crucial, as shooting while the boss is freely boosting will usually result in missed shots.
Navigating the Second Phase and Supercharged Attacks
Once its initial health bar is depleted, the IB-01: CEL 240 revives itself with enhanced Coral energy and renewed aggression. In this second phase, the boss gains wide-sweeping energy blade slashes and a massive charging transformation. To dodge the lethal blade arcs, execute timed Quick Boosts horizontally or gain vertical elevation rapidly.
When the boss transforms into a Coral bird to charge across the arena, gain altitude using your vertical boosters and drop as it passes underneath. Despite the visual chaos of the second phase, the core strategy of punishing its pause animations remains the same. Maintaining close proximity allows you to capitalize on stagger windows before it resumes high-speed maneuvers.
Key Defensive Strategies and Tactical Tips
Managing your energy reserve is vital throughout the entire battle to ensure you can dodge key lethal strikes. Avoid over-boosting into mid-air unnecessarily, as tank treads and heavy frames operate far more efficiently on the ground. Equipping Pulse Armor expansion abilities offers a temporary shield during critical moments when your stagger meter is near overload.
Learning to anticipate the boss's telegraphed charge animations will dramatically reduce the amount of damage your mech absorbs. Consistently applying pressure while reserving your high-damage attacks for key moments guarantees a successful outcome. With proper timing and optimized weaponry, even the toughest C-Weapon will eventually fall.
