When diving deep into the surreal world of Steal a Brainrot, certain encounters stand out for their complexity and challenge. One such encounter is with the formidable Graipusseni Medussini—a fusion of nightmare fuel and tactical difficulty. If you’ve been struggling with this boss or just want to understand the mechanics behind it, this Steal a Brainrot Graipusseni Medussini Guide will walk you through everything you need to know to overcome the threat and walk away with top-tier loot.


Who (or What) Is Graipusseni Medussini?

Graipusseni Medussini is a mid-to-late game boss located in the Murmuring Deep sector, an area notorious for warped perception effects and erratic enemy behavior. This creature is a two-phase threat that blends psychic debuffs with area denial, making it a difficult foe for players who rely on brute strength alone.

As its name suggests, the design of this boss evokes a hybrid of graipus-like multi-limbed aggression and medusa-inspired petrification mechanics—so movement and awareness are key to survival.


Preparing for the Fight

Before facing Graipusseni Medussini, make sure your gear and team are suited for prolonged engagement:

  • Equip Anti-Psychic Armor: Medussini’s psychic pulses can stack confusion quickly, breaking your combat rhythm.

  • Carry AoE Cleanse Injectors: These consumables remove stacking mental debuffs and reduce stun duration.

  • Bring Long-Range Options: Staying close invites tentacle grabs and toxin bursts. Marksman-type characters thrive in this fight.

It’s also smart to slot passive traits that resist “Mindwarp” status effects, which are common throughout the Murmuring Deep.


Phase One: The Tethered Stare

The first phase revolves around environmental manipulation. Graipusseni Medussini anchors itself to the ground via psychic tendrils. These tendrils periodically lash out, dealing AoE damage and attempting to tether players.

Tips:

  • Always keep moving to avoid the stare zone cast in front of Medussini.

  • Destroy the tendril nodes to break her invulnerability shield.

  • Use vertical terrain to break line-of-sight during the “Psychic Spiral” attack.

Staying behind cover when you see the boss charge up her head-thrashing animation can save your team from catastrophic psychic shockwaves.


Phase Two: The Echoing Gaze

Once at 40% HP, Graipusseni Medussini enters her second form, detaching from the ground and hovering. This phase introduces duplication illusions that mimic her abilities, forcing players to track the real boss based on audio cues and flicker patterns.

Tips:

  • Use sound: The real Medussini emits a distinct echo just before attacks.

  • Focus-fire: Don’t split DPS between illusions—identify and eliminate the source.

  • Expect crowd control: The gaze attack now causes paralysis instead of confusion.

This is where your team’s coordination is tested. Use voice comms or quick ping systems to identify the real Medussini, and save your ultimate skills for this phase to end it quickly.


Recommended Builds

For those looking to fine-tune their approach, here are three role-specific recommendations:

  • Tank: Fortified Carapace + Null Mind Helm. You’ll be the anchor against tether grabs.

  • Support: Syrinx Core Amplifier. A must-have for status cleansing and revives.

  • DPS: Neural Snapbow or Fluxfire Launcher. Prioritize burst over sustained damage.

Pair these builds with movement-speed-enhancing implants to dodge the Gaze and the Spiral attacks effectively.


Rewards and Loot Table

Defeating Graipusseni Medussini nets players high-tier gear components, including:

  • Medussini’s Third Eye (Legendary Focus Module)

  • Graipus Carapace Plate (Tank-exclusive armor piece)

  • Echo Warden’s Fang (Rare dual-mode weapon)

These drops are crucial for endgame builds and crafting, making the fight well worth your time.

If you’re serious about progressing through Steal a Brainrot’s more intense content, mastering this encounter is a must. Hopefully, this Steal a Brainrot Graipusseni Medussini Guide gives you the knowledge and preparation needed to face her with confidence. Remember, this is one of those fights where understanding the mechanics matters just as much as your gear.