I would agree that the sales of the various games you posted have horrible drops - but so do many console games, regardless of system.
The X360 in Japan IS comprised of mostly hardcore buyers, that will rush out for a title.
However, despite the abysmal drops (which are really bad), many of the games you've listed end up having somewhat decent multipliers.
Dead Rising, for example. Despite its huge drop after the first week, has sold 4x it's initial week - very few, if any PS2 games (which also have tons of major drops) have been the same way.
Nevertheless, great post. I never realized some of those specific games were so frontloaded - it puts Trusty Bell in perspective.
Back from the dead, I'm afraid.







