Calyx has invited you to a confrontation at the Meso Terminal, where his memories are stored.
How to Unlock
The Meso Terminal, a 4-player dungeon, is unlocked by the level 100 Main Scenario Quest A Terminal Invitation.
Chirugeon General
Medicine Field damages all characters.
When there is a message about liquid chemical dispensers, there will be a knockback indicator and some circle attack markers around the four objects in area. Position yourself to be knocked into the corner near one of the smaller circle attack markers.
The boss will cast either Biochemical Front, which will hit the half of the area in front of the boss, or Biochemical Back, which will hit the half of the area behind the boss. Stand in the safe half to avoid the attack.
When the boss casts Sensory Deprivation, if there is just a knockback marker, just make sure to position yourself next to the first knockback marker that appeared. Any additional knockback markers are fake. If the boss casts Sensory Deprivation along with circle attack markers on the ground, just make sure you remember which corners are safe. Countdown markers will appear over either the obscured circle attack markers or the knockback markers. If they appear over the circle attack markers, position yourself whereever was safe from the circle attacks, then position yourself next to the real knockback marker (whichever one appeared first). If the countdown markers appear over the knockback markers first, position yourself next to the real knockback marker (whichever one appeared first) so you are knocked back into one of the safe corners.
Concentrated Dose is a high-damage attack on the player highest in the enmity list, which also inflicts poison.
Headsmen
Lawless Pursuit gives you a debuff. Check each enemy to see which one has the same debuff as you, then only attack that one.
Head-splitting Roar damages all characters.
You will be trapped in an enclosed area with your tethered enemy. When blades appear on the sides, make sure not to be standing in front of them, because they will each perform line attacks. After the first line attacks occur, move into the safe areas they leave behind so you can avoid any additional blades.
When mines float over your area, stand as far away as possible from where their glowing lines touch the floor.
Will Breaker is an interruptable cast that will only be used on the tank.
Relentless Torment is a high-damage attack on the player highest in the enmity list.
Death Penalty inflicts a Doom debuff that needs to be removed with Esuna.
Peal of Judgement causes the floor to become unsafe, inflicting a Burn debuff. Destroy the Hellmaker at the side of the area to remove the debuff.
Immortal Remains
Recollection damages all characters.
When untargetable robots appear along the edges and tether to the untargetable people in the battle area, robots will do line attacks in both directions on these people, so stand diagonal to the tethered people to avoid getting hit by the line attacks. Afterward, stand with one of the previously tethered people to avoid the next line attacks.
Memory of the Storm targets a random player with a line stack marker. Unmarked players should stack together in a line with the marked player to reduce the damage of the attack.
Untargetable people will appear on the area, some standing in a circle, some standing alone. Those standing in a circle will do large circle attacks, and those standing alone will do small circle attacks. Stand closer to people standing alone than to people standing in a circle, and move out of the range of the small circle attacks if you're too close.
If a message appears, saying that the boss is gathering energy, watch the boss's arms, and don't stand on the same side as the arm that the boss is raising.
When a knockback marker appears, position yourself to be knocked to a corner where there is a person standing alone, then move away from them to avoid their small circle attacks.
Memory of the Pyre is a high-damage attack on the player highest in the enmity list.
When untargetable people appear on the area and start running in lines, make sure not to be in the path of either of these lines, and keep your distance, because large line attacks will occur along those lines.
Completing the Quest
Defeating the boss will complete one of the quest objectives for the Main Scenario Quest A Terminal Invitation.
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