BlazBlue Laboratory

From BlazBlue Wiki

BlazBlue Laboratory, BlazBlue Lab, or BBLab (ぶるらぼ bururabo) is a roughly monthly series of Japanese-language livestreams hosted by Arc System Works to promote and reveal new information for the mobile game BlazBlue Alternative: Dark War.

It started as a series of four specials explaining the mechanics of the game before its release, before growing into a regular series.