Bug? No, it's a video effect!

Blandia has a lot of original bugs, but why leave it with more? Actually, I got the missing video effect in Jurane stage emulated. See MAMETesters bug.
Basically it activates a video register bit, writes an "effect palette" and changes the base palette for the pixels underneath the "special" ones of the foremost tilemap.
I was looking at this bug back in 2008, I mentioned it in my last wip post on that year :-p









Source: reip.mameworld.info