re: which GP_TITLE build is which screen, measured against the game

Q2. The archive is eight screens shipped twice, English and Japanese --
not the "build 4 title, 5 main menu, 6/8/9 submenus" the handoff claimed.
Build 8 is the JAPANESE main menu; 6 and 9 are the EN and JP EXTRAS, and
EXTRAS is the only submenu GP_TITLE holds. The PRESS (A) BUTTON plate is
its own build (2/3), composited over the title art and faded in a beat
later, not a state of build 4.

Confirmed by booting to the main menu and walking it: title, PRESS (A),
main menu and EXTRAS each match their render element for element. Builds
0/1 and 10/11 -- a DELTASABER / SYLPHEED A.I. plate -- were looked for in
the whole boot filmstrip, every title-side screen and the attract loop,
and appear in none of them; the reach of that negative is written down
rather than filled in with a guess.

Two rig traps went into METHOD: the menus drop d-pad presses shorter than
~0.3 s, and a grab 2.5 s after a transition can catch a screen mid-fade
-- which nearly wrote "the returned title has no plate" into the corpus.

docs/re/INDEX.md

@@ -149,6 +149,7 @@ files, which is how the same ground got covered twice.
 | [`title-crash-stl-tree.md`](title-crash-stl-tree.md) | The title-screen crash is an STL `map`/`set` erase on a bad iterator |  ✅ CONFIRMED — the guest throws std::out_of_range from an STL |
 | [`ui-paint-order-third-permutation.md`](ui-paint-order-third-permutation.md) | A third measured paint order — tool built and validated, screen not reached |  ✅ the reader works and is CONFIRMED against both previously |
 | [`ui-quad-class-foothold.md`](ui-quad-class-foothold.md) | The guest's UI quad class — a foothold found from the capture's vertex layout |  🟡 PROBABLE for the identification below (it is a static read, but |
+| [`ui-title-build-map.md`](ui-title-build-map.md) | Which `GP_TITLE` build is which screen state |  ✅ CONFIRMED for title / `PRESS Ⓐ` / main menu / `EXTRAS` against live captures; the archive is 8 screens × EN/JP, and "6/8/9 are submenus" is withdrawn |
 | [`ui-title-paint-order-capture.md`](ui-title-paint-order-capture.md) | The title screen's paint order, measured from the guest's draw submissions |  ✅ CONFIRMED — the order in which the running game paints the title |
 | [`upstream-baseline.md`](upstream-baseline.md) | A stock-upstream baseline runs Stage 02 crash-free |  ✅ CONFIRMED — upstream canary_experimental + only the pad |
 | [`weapon-datasheet-runtime.md`](weapon-datasheet-runtime.md) | Weapon DATA SHEET — runtime capture (Route B) |  🟡 first dynamic capture, 2026-07-28. The Arsenal's Gallery Mode panel is a |

docs/re/METHOD.md

@@ -117,3 +117,16 @@ agent's loop prompt, i.e. nowhere durable. See [`README.md`](README.md) for the
 * **Measure animation in submitted frames, not in seconds.** `VdSwap` counts are
   the guest's own frames, so an emulator at 80 % of real time does not move them;
   a stopwatch reading does, silently and by an unknown factor.
+* **This game's menus drop d-pad presses shorter than ~0.3 s.** `pad.py dpad`
+  defaults to 0.06 s, and its docstring says longer "auto-repeats and
+  overshoots". On the title main menu that default is *dropped*: four presses at
+  0.12 s moved the cursor one step, four at 0.20 s moved it none, while
+  0.30/0.50/0.80 s each moved it exactly one step and none of them repeated. A
+  scripted navigation that comes out one item short is this, not a wrong item
+  count — screenshot after every step and check the cursor rather than trusting
+  the press count.
+* **A screenshot taken right after a transition can catch a screen mid-fade.**
+  A grab 2.5 s after Ⓑ returned the game to the title showed the title art with
+  no `PRESS Ⓐ BUTTON` plate; one second later the plate was there. That very
+  nearly went into the corpus as "the returned title has no plate". Sample a
+  changing screen several times before writing down what it does *not* contain.

docs/re/REFUTED.md

@@ -35,6 +35,12 @@ neighbourhood, not just the line.
 
 ## Screens, classes and RTTI
 
+* "`GP_TITLE` builds 6/8/9 are three submenus" → **8 is the JAPANESE main
+  menu**, and 6/9 are the English and Japanese `EXTRAS` submenu. `GP_TITLE`
+  holds eight screens shipped twice (EN/JP), and exactly one submenu. See
+  [`ui-title-build-map.md`](ui-title-build-map.md).
+* "the `PRESS Ⓐ BUTTON` plate is a state of the title build" → it is **its own
+  build** (2/3), composited over build 4 and faded in a beat later.
 * "the RTTI route can name the anonymous classes" → 1 150 vtables: 1 150
   `ANON_`, 0 `rtti_present`, 0 base classes.
 * "the sibling vtable methods name the class" → they cannot.

docs/re/ui-title-build-map.md

@@ -0,0 +1,107 @@
+# Which `GP_TITLE` build is which screen — measured against the running game
+
+**Status:** ✅ `CONFIRMED` for the four screens the boot path actually shows
+(title art, `PRESS Ⓐ BUTTON`, main menu, `EXTRAS`); 🟡 `PROBABLE` for their
+Japanese twins; ❔ open for the two `DELTASABER` plates.
+
+Answers [MISSION Q2](../port/MISSION.md). The previous statement — *"build 4
+title, 5 main menu, 6/8/9 submenus"* — is **partly wrong** and is withdrawn:
+build 8 is the **Japanese main menu**, not a submenu, and `GP_TITLE` holds
+exactly **one** submenu (`EXTRAS`), in two languages.
+
+## The archive is eight screens, each shipped twice
+
+`GP_TITLE.pak` has 16 entries; `sylpheed-cli screen list` calls 12 of them
+composable builds. The 16 fall into **eight pairs**, and each pair's two members
+have near-identical sizes and name hashes that differ by a constant — one
+character of the name apart:
+
+| entry | hash | bytes | build idx | pair |
+|---|---|---|---|---|
+| 0 | `01a2db9c` | 483 958 | 0 | A |
+| 1 | `0ff0b8a8` | 483 958 | 1 | A |
+| 2 | `285d8849` | 267 014 | 2 | B |
+| 3 | `369773cb` | 267 014 | 3 | B |
+| 4 | `a60fcb85` | 12 278 666 | 4 | C |
+| 7 | `b483e6e6` | 13 363 328 | 7 | C |
+| 5 | `a715f485` | 6 977 437 | 5 | D |
+| 8 | `b58a0fe6` | 6 931 653 | 8 | D |
+| 6 | `a81c1d85` | 6 549 126 | 6 | E |
+| 9 | `b69038e6` | 6 548 438 | 9 | E |
+| 10 | `cdba806e` | 426 473 | — | F |
+| 13 | `db2ea1f8` | 423 333 | — | F |
+| 11 | `cec0a96e` | 999 643 | — | G |
+| 14 | `dc34caf8` | 999 643 | — | G |
+| 12 | `cf2a8ccd` | 1 774 639 | 10 | H |
+| 15 | `dd56d99b` | 1 774 639 | 11 | H |
+
+For the three pairs whose members differ visibly — C, D, E — **the difference is
+English versus Japanese**: build 7 is the title art with the katakana subtitle
+プロジェクト シルフィード, build 8 the main menu reading 新規 / ロード /
+チュートリアル / オプション / エクストラ, build 9 the `EXTRAS` submenu as
+エクストラ. That is the whole of the language split we can see. In pairs A, B and
+H the two members render **byte-identical PNGs** — the archive still carries two
+copies, but the artwork does not change with the language.
+
+Pairs F and G are the four entries `screen list` does *not* classify as builds.
+They are not identified here.
+
+## The map
+
+Contact sheet of every render:
+[`captures/title-builds/title-build-contact-sheet.png`](captures/title-builds/title-build-contact-sheet.png).
+
+| build | what it is | confirmed how |
+|---|---|---|
+| 0, 1 | a `DELTASABER / SYLPHEED A.I.` plate low-left on black, no background | ❔ **not observed running.** Never seen in the boot path, the main menu, `EXTRAS` or `MISSION SELECT` |
+| **2**, 3 | the `PRESS Ⓐ BUTTON` plate — **an overlay build of its own**, not a state of build 4 | ✅ seen composited over build 4 on the live title, at the same rect our render puts it |
+| **4** | title art, English (`PROJECT SYLPHEED`, ™, `(C)2006,2007 SQUARE ENIX`) | ✅ [`live-title-press-a.png`](captures/title-builds/live-title-press-a.png) |
+| 7 | the same, Japanese | 🟡 renders as the JP twin of build 4; the container runs an English locale, so it was not seen |
+| **5** | main menu, English: NEW GAME / LOAD GAME / TUTORIAL / OPTIONS / EXTRAS, footer `Ⓐ : OK` | ✅ [`live-main-menu.png`](captures/title-builds/live-main-menu.png) — element for element |
+| 8 | the same, Japanese | 🟡 as above |
+| **6** | the `EXTRAS` submenu, English: MISSION SELECT / MOVIE THEATER / BACK, footer `Ⓐ : OK  Ⓑ : Back` | ✅ [`live-extras.png`](captures/title-builds/live-extras.png) |
+| 9 | the same, Japanese | 🟡 as above |
+| 10, 11 | the same `DELTASABER` plate as build 0, over a dark circuit-line background | ❔ **not observed running** |
+
+**Reach of the two negatives.** Builds 0/1 and 10/11 were looked for in: the whole
+boot sequence (a 5 s-cadence filmstrip from launch to the title, ~190 s), the
+title, the main menu, the `EXTRAS` submenu, the `LOAD GAME` slot list, the
+transition into `MISSION SELECT` (a 40-frame burst), and the attract cycle. They
+appear in none of them. The obvious remaining candidate is a *long* load — a
+mission launch — which is out of this objective's scope; they are most likely a
+loading/AI-chatter plate. That is a hypothesis, not a result.
+
+## Three things the captures settle beyond the map
+
+**The live title is two builds composited.** Build 4 draws the art; build 2 draws
+`PRESS Ⓐ BUTTON` on top, and it **fades in a beat later** — a screenshot taken
+2.5 s after arriving at the title has the art and no plate, one taken ~1 s later
+has both. The port must treat the plate as its own timed element.
+
+**The attract-loop title carries the plate too.** After ~8–10 s idle the title
+fades to black, a full-motion video plays for ~85 s, and the title comes back —
+*with* `PRESS Ⓐ BUTTON`
+([`live-attract-title-press-a-band.png`](captures/title-builds/live-attract-title-press-a-band.png)).
+This is consistent with, and adds nothing to, the draw-quad comparison in
+[`canary-scripted-input-traps.md`](canary-scripted-input-traps.md): the plate is
+not the tell that distinguishes the boot title from the attract title.
+
+**`EXTRAS` is the only main-menu destination inside `GP_TITLE`.** Ⓐ on `EXTRAS`
+opens build 6 — measured. The other four destinations leave the archive: Ⓐ on
+`LOAD GAME` opened a `LOAD GAME` slot list, and Ⓐ on `MISSION SELECT` inside
+`EXTRAS` opened a `MISSION SELECT` screen, neither of which is a `GP_TITLE`
+build. `dat/` carries `GP_SAVE_LOAD.pak`, `GP_TUTORIAL.pak`, `GP_OPTIONS.pak`,
+`GP_MISSION_SELECT.pak` and `GP_MOVIE_THEATER.pak`; **that those are the archives
+behind the other four buttons is an inference from the names, not a measurement.**
+
+## How to reproduce
+
+```bash
+sylpheed-cli screen list  "$SYLPHEED_DISC/dat/GP_TITLE.pak"
+sylpheed-cli screen render --build 6 "$SYLPHEED_DISC/dat/GP_TITLE.pak" /tmp/b6.png
+tools/re-capture/boot_menu.sh q2      # boots to the main menu, cursor on NEW GAME
+tools/re-capture/pad.py dpad down 0.35 # x4 -> EXTRAS
+tools/re-capture/pad.py tap A 0.30
+```
+
+Mind the d-pad hold — see [`METHOD.md`](METHOD.md).