Merlot's Laboratory is a playable location in RWBY: Grimm Eclipse.
It seems almost ostentatious, as only Dr. Merlot himself truly worked within this lab.
The colour scheme is also a drab greyscale, the only colour coming from the red alert system, the TVs placed on the walls, or in the tanks that create mutant Grimm.
Merlot's Laboratory first appeared in the full release of RWBY: Grimm Eclipse. It can be visited in the following chapters: