Laboratories

The Laboratories is the seventh area in Marrow.

Description
The Laboratories is the area immediately following Necropolis and the fight with the Lumen Caster. It is an area of intense greenery and several dilapidated pieces of scientific paraphernalia. In order to enter the Laboratories, the player must first strike the second Red Harp before the door will open.

The Labs are twisting and circular, looping around on itself. Several fearsome creatures such as Seekers and Vagrants stalk the grounds of the Labs. There are several dart traps that are will respawn during room transition. These can be seen by a small indent in the wall or by using the Resonant Orb (colored blue) to see the invisible lasers. There are two Migrants located within the labs. Both must be killed in order to advance the game. Killing the first will open up the path, while killing the second will activate the purple orbs that will allow the player to dash across the screen and reach previously unavailable areas.

There are three upgrades hidden within the labs: the Green Medallion, Second Earring, and Decrepit Golden Sword. The corroded sword must be brought to the altar above the second Migrant's fight in order to turn it into the Golden Sword. If the player uses the Corroded Sword for too long, it will break. The Green Medallion is hidden behind a green wall and in order to access it, the player must strike the Red Harps to discover which produce how many and of what color Lumen Flies. The solution is Green, Red, Yellow and Blue.

After exiting the Laboratories, the player will enter the Sewage. There is nothing stopping the player from bypassing the Laboratories entirely by passing through the pool of marrow at the very bottom of Necropolis and advancing directly to the Sewage, but the purple orbs must be activated in order for the player to be able to advance past the Sewage.

Lore

 * Several experiments involving marrow took place in the Laboratories.