Defeating Smart Cleaner in Armored Core 6

The EC-0804 Smart Cleaner stands as a formidable early-game boss in Armored Core 6: Fires of Rubicon, appearing during the Infiltrate Grid 086 mission in Chapter 2. This massive, bulldozer-inspired machine patrols with devastating close-range attacks, making it a nightmare for ground-based pilots. Success hinges on aerial dominance, precise targeting of weak points, and builds optimized for stagger and burst damage. By staying airborne and exploiting its vulnerabilities, players can dismantle it efficiently.

Understanding the Smart Cleaner’s Design and Weaknesses

The Smart Cleaner resembles a hulking industrial cleaner with grinder arms, a protective dome head, and a prominent smokestack on its back. Its health pool exceeds 48,000, but targeted strikes reduce this threat dramatically. Key vulnerabilities include the glowing frontal sensor (eye) and the interior of the smokestack, which serve as stagger points. Attacks on armored sections like the arms or exterior yield minimal returns.

• Frontal Sensor: Primary stagger target when exposed post-stagger.
• Smokestack Core: Ideal for aerial bombardment; direct hits inside amplify impact.
• Overall Armor: Highly resistant except at specified weak spots.

Lightweight, mobile AC frames excel here, as heavyweight setups struggle with the boss’s aggressive lunges. Explosives and linear weapons shine for building stagger from range.

Optimal AC Builds for Victory

Customization defines Armored Core 6 combat. For Smart Cleaner, prioritize flight capability, stagger-building weapons, and quick boosts. Tetrapod legs enable sustained hovering, turning the arena into your domain.

Alternative: Dual shotguns for close-range cheese, but pair with flight for safety. Melee like PB-033M ASHMEAD works post-stagger for greedy damage.

Mastering the Arena and Flight Mechanics

The fight unfolds in Grid 086’s lower level, a confined space favoring the Cleaner’s charges. Immediate takeoff is crucial—ground contact invites one-shot kills from arm smashes.

• Hover constantly using tetrapod mode to target smokestack from above.
• Quick boost sideways for lunges; jump over dragging swipes.
• Maintain distance post-landing to avoid follow-ups.

Aerial superiority neutralizes 90% of threats, as the Cleaner lacks reliable anti-air.

Attack Patterns and Dodge Strategies

Anticipating moves ensures survival. The Cleaner opens aggressively, escalating in phase two.

Phase 1 Attacks

• Double Arm Bash: Initial lunge crushing between grinders. Boost sideways or jump immediately.
• Lunge Punch: Arm raise signals charge punch. Strafe or hop over; phase 2 adds a second.
• Arm Swipe/Uppercut: Ground drags or upward slams. Stay airborne; if landed, sprint away.
• Rockets: Rare homing-less projectiles. Simple dodge roll suffices.

Phase 2 (50% Health)

Smokestack erupts more violently, spewing extra fireballs.

• Molten Spew: Fireballs from stack. Hover overhead—they pass harmlessly below. Opportunity for free damage.
• Enhanced Charges: Faster, chained attacks. Prioritize distance.

Stagger windows open the face hatch—unload then.

Step-by-Step Combat Flow

1. Launch Assault: Hover high, missile spam smokestack for initial impact.
2. Shotgun Barrage: Laser blasts inside stack; follow with bazooka for stagger.
3. Ground Rush: On stagger, drop and target exposed eye with all weapons. Avoid missiles here.
4. Reset and Repeat: Boost skyward post-recovery. 2-3 cycles end the fight.

Video evidence confirms sub-2-minute clears with this loop.

Common Pitfalls and Fixes

Many fail by fighting grounded or ignoring weak points.

• Problem: One-shotted on ground. Fix: Never land except during stagger.
• Problem: Low stagger. Fix: Aim precisely inside stack/eye; use explosives.
• Problem: Phase 2 overwhelms. Fix: Stay overhead—fireballs miss.
• Problem: Build too heavy. Fix: Swap to lightweight/tetrapod.

Advanced Tactics and Variations

Cheese with dual shotguns: Fly circles, pepper face/stack. Melee enthusiasts charge ASHMEAD on stagger for massive chunks. For NG+, scale weapon power accordingly.

Test in simulation before mission. Adjust for playstyle—tankier pilots use pulse shields defensively.

Why Smart Cleaner Tests Pilots

This boss introduces stagger mechanics and leg-type importance, foreshadowing tougher encounters. Mastering it builds habits for endgame.

Frequently Asked Questions (FAQs)

What is the easiest way to beat Smart Cleaner?

Fly tetrapod build, target smokestack with missiles/shotgun/bazooka, rush eye on stagger.

Best weapons against Smart Cleaner?

Laser shotgun, vertical missiles, bazooka for stagger; melee for close.

Can you beat Smart Cleaner on ground?

Possible but risky—dodge margin tiny, favors air.

Smart Cleaner health and phases?

~48k HP; phase 2 at half with intensified spew.

Is Smart Cleaner optional?

No, required for Grid 086.