Interesting conversation about the PacMan graffiti. My initial reaction was that it's not connected, but I spoke with my son (avid gamer) and he had interesting insight.
Here's his 2 cents: Since the"ghost" is closer to the big dot than Pacman, if Pacman continues to approach the ghost, the ghost wins. Other indicators that signify that the ghost is stronger than Pacman is that there is no squiggly mouth on the ghost. A weak ghost would have a squiggly mouth, it would also lose it's pupils (n/a since there are no pupils on this ghost). At this point in a game, Pacman would need to get the heck out of dodge to survive. But, since the wall says, 'Game Over', the message is that the ghost wins. Pacman does not advance.
The bow and location (close to BW's house) makes my son think that a possible connection to Mickey is reasonable. He changed my mind. So I thought I would share his opinion.
His take was that this could either be from the perp: saying basically, "you are getting too close to getting me, so I'm out of here". That is - the perp is leaving town. Or, it could be from Mickey insider's/ supporters taunting the perp, saying, " Game Over, we got you!"
...Opinions only...
ETA: Wall was first noticed too soon following Mickey's disappearance for any connection to be likely.
