GameParts exist at all Q6's second half, advanced but not closed, and the negative is the point. config.ini is the disc's ONLY config file -- one find over the whole extract -- and its own Shift-JIS header calls it the "Application / GamePart initial settings table". Its [SYSTEM] section, which that same comment says holds what the game and every game part share, is EMPTY. So the boot order is not in disc-side configuration at all, and that search space is now closed rather than merely unexplored. What the file DOES carry is the language: XC_LANGUAGE_* -> eng/jpn/deu/ fra/esp/ita, defaulting to eng. That is the mechanism behind the EN/JP build pairs in GP_TITLE and the <lang>.pak families -- a question the corpus had described but never traced to its input. Then the registry. Pulling every RegisterToFactory diagnostic string binds 24 of the 29 GamePart ids to a C++ class, and five ids have no registration site: 1, 2, 16, 18, 28. Id 1 is GP_ADVERTISE_DEMO, which agrees with what I measured two iterations ago -- the attract loop is the TITLE replaying ADV.wmv, not a transition into an advertise part. Marked amber, not green: it is an argument from an error message, not from code. Two things fall out for Q4: ids 3 and 4 are the same class (GamePart_SaveLoad, one part with two ids), and the menu buttons' ids now match the executable's own class names rather than a list of table names. Still a name match, one level closer to the code. What is still missing is the transitions themselves, and I say so: the manifest gives the boot-side assets, config.ini the language, the registry which parts exist. What decides to advance is in GamePart_Title's code and that dig has not been started.