DFOArchive: Meister's Laboratory Made Simple

Meister's Laboratory is an additional advance dungeon added after the release of level 110 expansion. Here are some quick information about the dungeon and mechanic for each boss (special thanks to KDnF players).

Dungeon Info

Each difficulty will have their own ticket. If you buy the Expert ticket, you can also enter normal mode. If you buy Master ticket, you can also enter expert and normal mode.

Time Limit: A 30-minute time limit applies at the start of the content. As long as you do not leave the party, you can continue to challenge for a limited time.
Dungeon Abandon: The party leader can retreat from the dungeon using the retreat button on the status board. When retreating, re-entry to the dungeon is not possible for a certain period of time. When retreating, the skill cooldown is maintained. After retreating, you can select 'Abandon mission' through NPC 'Meister Curio'. All dungeon progress will reset and entry materials will not be returned.
Combat Restrictions: When using coins in the dungeon, the skill cooldown is maintained

Operation Deterrence

Players can use the EF-MK1 vehicle to block the movement of Gáe Bulga.
One EF-MK1 vehicle can be boarded by one driver/one anti-aircraft gunner by entering the 'Z' key, respectively.

Up to 2 vehicles will be prepared.
If only the driver is in the EF-MK1 vehicle, the AI will fire instead.
The vehicle's defense changes according to the driver's reputation.
The vehicle's attack power is changed according to the anti-aircraft gunner's reputation.

You can identify your vehicle with the icon ().
When the vehicle's health is exhausted, all players in the vehicle will die. Players can be revived using coins (player in driver's seat will get priority).

Type	Key	Icon	Function
Common	Tab		Swap The Positions Of The Driver's Seat And Gunner Seat Bullets/Missiles Are Recharged.
Driver's Seat	Arrow Keys	-	Move The Vehicle Up, Down, Left, Or Right
	A		The Vehicle Dashes Forward Quickly
	C		The Vehicle Jumps Upwards
Gunner’s Seat	A		Fires Bullets
Gunner’s Seat	S		Launch Missiles

When a part is destroyed, the Operation Deterrence ends, and depending on the part destroyed, certain name boss is weakened. Also, if the destroyed part is the arm, you can use the elevator in that direction.

The number 1 priority is the torso, which weaken GB-5 Feluhan Stark. At the beginning of this boss, he applies a debuff to a random member so that you can't recover HP via pots or gears. If this member dies, he shoots missiles everywhere killing the whole party. If you destroy the torso, you will be immune to this debuff.
NOTE: If you're using Suppressed Mana Bracelet, then no need to destroy torso. This debuff has nothing to do with MP, so you can recover MP as much as you need. You can probably do either right or left arm.

Part Destroyed	Affected Boss	Details
Torso	GB-5 Feluhan Stark	20% Of Hp Is Cut And Starts In A Neutralized State. Number Of Missiles Is Reduced By 2,000 Upon Entry. *You Won’t Be Affected By Non-Recoverable Debuffs.
Core	GB-2 Identate	*The First Appearances Summoned By Gb-2 Identitate Do Not Attack For About 8 Seconds
Left Arm (Player’s Right POV)	GB-4 Diregent	18% Of Hp Is Cut And Starts In A Neutralized State Purple/Blue Spheres Do Not Track The Diregent, But The Player *Right Elevator Becomes Usable
Right Arm (Player’s Left POV)	GB-3 Energi	10% Of Hp Is Cut And Starts In A Neutralized State You Are Not Subject To Abyss Overload *Left Elevator Becomes Usable

Infiltration Operation

The pattern of certain monsters will be weakened depending on the part the player destroys in the Deterrence Operation.
You can finally clear the dungeon by defeating 'GB-1 Haps' located in the center of the Meister Lab.

For normal rooms on the 4th, 5th, and 6th floors, you can hit the computer to do DDR game to instantly kill all mobs on that map (no fail penalty).

When the live server hit, a security system is added to the Meister's laboratory. When defeating a named boss except for GB-1 Haps, a security system is activated.
This security system increases the attack power of all enemy monsters. During this time, some computers on the map become hackable. Successfully hack those computers will disable the security system and apply various effects to other bosses. It's in your best interest to hack those computers.