Boss Battle

Cogwork Dancers Boss Guide

Master the Cogwork Dancers duo boss fight in Hollow Knight: Silksong. Learn all 4 phases, attack patterns synced to music, and wall-cling cheese strategies.

September 10, 2025 8 min readCogwork DancersSilksong boss guideduo boss fight

Overview & Location

Cogwork Dancers

The Mechanical Twins

The Cogwork Dancers represent Silksong's first major duo boss encounter - two identical automaton performers who dance through combat in perfect synchronicity. Built to defend the Cradle from intruders, these mechanical entities test your ability to track multiple threats simultaneously.

Location: Cogwork Core

Act: Act 2

Boss Type: Duo (Twin)

Phases: 4 Phases

Located at the intersection of the Cogwork Core and Choral Chambers in The Citadel, the Cogwork Dancers serve as guardians of the final trial for those seeking Pharloom's peak. You'll encounter them after navigating through the mechanical depths of the Cogwork Core - look for the checkpoint bench just before the boss arena.

How to Find: From the Cogwork Bench Checkpoint, head to the top right. The arena entrance is unmistakable - ornate mechanical doors with spinning gears.

Unique Mechanics

The Cogwork Dancers have one of the most unique boss mechanics in Silksong - their attacks are perfectly synchronized with the boss music. This isn't just a cosmetic detail; it fundamentally changes how you approach the fight.

Music Synchronization

  • All attacks are rhythmically timed to the boss music
  • Staggering a dancer pauses the music entirely to maintain sync
  • Learning the rhythm helps predict incoming attacks

Separate Health Pools

Unlike shared-health duo bosses, each Cogwork Dancer has its own HP for each phase. A phase ends when either dancer's phase HP reaches zero - you don't need to deplete both.

Pro tip: Focus your damage on one dancer to advance phases faster. Don't split your attention.

The Wind-Up Phase

Between phases, both dancers return to their stations to be wound up by background cogs. The wind-up animation telegraphs the upcoming phase:

  • Phase 1: Normal wind-up speed
  • Phase 2: Noticeably faster wind-up
  • Phase 3: Alternating wind-up pattern
  • Phase 4: Slow, somber wind-up

Attack Patterns

The Cogwork Dancers have 3 main attacks, each telegraphed by distinct visual cues. The key to surviving is recognizing these tells and positioning accordingly.

Each dancer projects a light beam from its head indicating its dash direction, then rapidly dashes along that path. If a dancer dashes toward the ground, it performs a double-sided slash upon landing.

How to Dodge:

    • Watch for the light beam telegraph
    • Move perpendicular to the beam direction
    • After the dash, dancers are briefly vulnerable - strike!

Both dancers leave the arena temporarily, then a geometric pattern of light beams appears. The dancers attack by dashing along each light beam in sequence before returning to the arena.

How to Dodge:

    • Study the beam pattern as it appears
    • Find safe gaps between beams
    • Drifter's Cloak excels here for i-frames
    • Wall-cling does NOT work for this attack

Both dancers project light beams toward the center where a circular telegraph appears. They dash to the center and unleash a flurry of slashes within the circle. At the end, they hover mid-air in an embrace before resuming their Cadence.

How to Dodge:

    • When you see beams converge to center, move to corners
    • The embrace at the end is a free damage window
    • Time your strongest attacks for this moment

Phase Breakdown

The fight progresses through 4 distinct phases, each changing how the dancers coordinate their attacks. Understanding these phases is crucial for consistent victories.

Phase 1: Synchronized Dance

Both dancers move simultaneously along their white line paths. They perform synchronized attacks, occasionally creating a circular attack in the arena's center that unleashes a barrage of slashes.

Approach: Learn the rhythm. Both dancers telegraph attacks together, making it somewhat predictable.

Phase 2: Accelerando

Same movement pattern as Phase 1, but much faster. The music tempo increases, and so do the attacks. This is often the hardest phase for first-timers.

Approach: Stay defensive. Focus on dodging until you learn the faster timings, then punish the Clash embrace.

Phase 3: Solo Performance

The dancers attack asynchronously - only one moves at a time. Despite sounding harder, most players find this easier since you only track one threat.

Approach: Aggressive playstyle works well here. Attack the stationary dancer while dodging the active one.

Phase 4: Final Solo

When one dancer is defeated, the survivor becomes extremely slow, as if losing the will to fight. It attempts the circle barrage attack but fails, floating motionless in the center.

Approach: Free damage phase. The remaining dancer is essentially helpless - finish it quickly.

Strategy & Tips

Tools

  • Thread Storm - Max damage during vulnerable states
  • Sting Shard - DoT while dodging
  • Drifter's Cloak - Evade light ray attacks
  • Ascendant's Grip - For wall-cling cheese

General Tips

  • Focus damage on one dancer
  • Punish the Clash embrace
  • Jump frequently in Phase 2
  • Be aggressive in Phase 3

Key Strategies

Target One Dancer

Since phases end when either dancer's HP hits zero, concentrate all your damage on one. This is especially effective in Phase 3 when one dancer stands still.

Learn the Rhythm

The music isn't just ambiance - it's telling you when attacks come. After a few attempts, you'll start anticipating attacks before the visual telegraphs appear.

Exploit the Embrace

After every Cogwork Clash, the dancers hover together mid-air in an embrace. This is your biggest damage window - save your Thread Storm or strongest combos for this moment.

Wall-Cling Cheese Strategy

The Easy Mode Strat

If you have the Ascendant's Grip Tool, you can trivialize most of this fight using a wall-cling strategy:

Cling to the middle of either wall using Ascendant's Grip 2. 2. Most attacks (Cadence and Clash) will miss you entirely 3. 3. When a dancer dashes to a corner near your wall, drop down and get a few hits 4. 4. Return to wall-cling position immediately after attacking

Warning: Cogwork Configuration STILL hits you on the wall. Drop down and dodge normally during this attack pattern.

This strategy makes the fight much slower but significantly safer. It's perfect if you're struggling with the fast Phase 2 timings or just want to secure the win.

Rewards

Defeating the Cogwork Dancers grants you access to the western section of the Choral Chambers, opening up new areas to explore and progress the story.

Victory Unlocks

  • Access to West Choral Chambers
  • New exploration areas unlocked
  • Story progression

Wrapping Up

The Cogwork Dancers are a beautiful but deadly dance partner - maybe the most visually stunning boss encounter in Silksong. Their music-synced attacks create a rhythm game within an action game, and mastering their patterns feels incredibly satisfying.

Remember: focus your damage, learn the music, and don't be afraid to use the wall-cling cheese if you're struggling. Phase 3 is your friend, and Phase 4 is basically a victory lap. Good luck, dancer!

Take it slow, learn the rhythm, and you'll be waltzing through this fight in no time!