ARC 3 · SAKUZYO · FBD 13 FORBIDDEN
Cold Sea — FBD 13 EX+, Frame by Frame
SAKUZYO · MIN 4 · EVO 7 · ULT 10 · FBD 13 · EX+ 099'040'196
A frame-by-frame read of Rio's EX+ dive of Sakuzyo's Cold Sea at FBD 13 — the cold-open EX card, the REFLECT loadout, the curved violet sails and the gold hex walls — ending in a DIVE RESULT whose judgement rows total 2,339, the same total the video's opening card prints for this chart.
The run at a glance
- ▸Single source: Rio's Cold Sea FBD 13 EX+ capture (uploaded 2026-09-13) — the catalog's FBD 13 tier for Sakuzyo's Arc 3 song, played as a REFLECT dive at SPEED 3.80 with NIA fronting five named cards, from Bound by Heaven and Earth to True Colors.
- ▸The result screen: SCORE 099'040'196 with rank EX+, MAX LINK 1051, HIGH SCORE 098'911'908, DIFFERENCE +000'128'288 — the arithmetic checks to the digit (099'040'196 − 098'911'908 = 128'288): a personal best over the EX attempt the video cold-opens on.
- ▸The four judgement rows — EXACT 2145 + 157, NEAR 29, BREAK 8 — sum to 2,339, and the cold-open card's rows (EXACT 2117 + 180, NEAR 33, BREAK 9) sum to the same 2,339: the chart's FBD total, printed twice on camera. The catalog publishes no FBD split for this song.
- ▸EX+, not a Perfect Dive: NEAR 29 and BREAK 8 are on the card, a red BREAK flashes on camera mid-chart, and MAX LINK 1051 stops short of the 2,339 total. No Assist Mode slot appears anywhere in the capture.
Source footage
One video backs every still below: Rio's Cold Sea FBD 13 EX+ run (3:18, uploaded September 13, 2026) — a 1080p60 keyboard dive whose in-play song panel itself reads FBD 13 next to SPEED 3.80. Deep links in each step jump to the matching moment.
The upload's automatic captions carry only the song's own vocals — the repeated line "I am home." — and no narration, so every fact below is screen forensics cross-checked against the song catalog. The capture carries the recorder's keyboard hand-cam as one fixed picture-in-picture window in the top-right corner — recorder overlay, not game UI — patched out of all twelve stills with a delogo fill of 528×237 at x1071/y92, measured on the 1600-wide stills; the window persists through the REFLECT screen and the result card, so no frame ships unpatched, while the in-play song panel's red FBD 13 chip and SPEED 3.80 readout sit just above the fill and stay. The video itself is untouched and linked in full. Deep-link seconds follow the decode-accurate timeline of the upload (calibrated against the in-frame score counter; the download's naive seek index does not survive, so every still was cut with decode-ordered seeks) and can land a moment off; every still was verified individually.
The chart at a glance
CATALOG · V1.0.2CLevels and note counts below come from our song catalog (community wiki data, game version 1.0.2c) — with one gap that matters here: the catalog lists Cold Sea's FBD tier at 13 but publishes no FBD note split, so the chart total is documented from the capture's two result cards instead.
| Song | Cold Sea |
|---|---|
| Artist | Sakuzyo |
| Arc | Arc 3: Heaven's Chains |
| Version | 1.0.2c |
| Levels (MIN · EVO · ULT · FBD) | MIN 4 · EVO 7 · ULT 10 · FBD 13 |
Cold Sea's documented splits stop at ULT — MIN 527, EVO 883 and ULT 1,282 (tap 400 + hold 319 + field 437 + flick 126, the ULT page's chart). No FBD row is published; the capture's two cards both print 2,339 total judgements, quoted as the FBD total as played.
| Difficulty | Tap | Hold | Field | Flick | Total |
|---|---|---|---|---|---|
| MIN | 161 | 150 | 160 | 56 | 527 |
| EVO | 210 | 343 | 222 | 108 | 883 |
| ULT | 400 | 319 | 437 | 126 | 1282 |
→ Cold Sea→ In Falsus Song List — All 75 Tracks with Chart Levels→ Difficulty Levels
How the FBD 13 chart unfolds — and where it lands
12 FRAMES · 3:18 CAPTURETwelve frames from Rio's EX+ dive, in video order — the cold open, the loadout, then the chart. Timestamps deep-link into the video; they follow the decode-accurate timeline of the upload and can land a moment off.
- 1
Read the cold-open card: the EX before the EX+
The video opens on a settled DIVE RESULT — Rio's previous attempt: SCORE 098'911'908 with rank EX, EXACT 2117 + 180, NEAR 33, BREAK 9, MAX LINK 830, HIGH SCORE 098'698'148, DIFFERENCE +000'213'760 — and that subtraction checks to the digit. Its four rows total 2,339: the number the new run's card has to match.

EXACT 2117 + 180 / NEAR 33 / BREAK 9 = 2,339 · Capture: Rio on YouTube ↗ - 2
Confirm the chart: 13 FORBIDDEN
The song detail screen states the terms: a red 13 beside DIFFICULTY FORBIDDEN — the game's own spelling of the FBD axis, quoted as seen — HIGH SCORE already 098'911'908 (the cold-open card's score), Cold Sea · Sakuzyo on the nameplate and ILLUST fixro2n under the jacket.

HIGH SCORE 098'911'908 already on the board · Capture: Rio on YouTube ↗ - 3
Read the REFLECT loadout
NIA fronts five named cards — Bound by Heaven and Earth (⚡14,768 / ❄7,658), Path to Reality (⚡30,416 / ❄12,226), A Forgiving Embrace (⚡12,774 / ❄24,397), Glassful! (⚡23,509 / ❄20,945) and True Colors (⚡20,956 / ❄31,434) — quoted as shown, with the HUD still at 000'000'000.

Five named cards behind NIA, HUD at zero · Capture: Rio on YouTube ↗ - 4
Highway ready: FBD 13 at SPEED 3.80
The empty highway waits at 000'000'000 — PHASE 0, encounter gauge 0.00% (0/49,900★), lane keys Shift, A, S, D, F, Space along the keystones, and the top-right panel stating the terms: Cold Sea, Sakuzyo, FBD 13, SPEED 3.80.

PHASE 0 — gauge 0.00% (0/49,900★) · Capture: Rio on YouTube ↗ - 5
Opening: the full-width field plate
FBD 13 opens with a wide cyan field plate spanning the whole floor — an EXACT on the wedge at 000'828'055, flick sparks firing along the line, PHASE 1, ENCOUNTER SCORE 45. Cheap to read at first; the chart does not stay that way.

PHASE 1 — ENCOUNTER SCORE 45 · Capture: Rio on YouTube ↗ - 6
Twin cyan slabs over the watermark 274
At 011'710'438 a pair of cyan slabs rides the center lanes with an EARLY EXACT / EXACT split on the row and a yellow flick line diving between them — combo watermark 274, and gold hex outlines already pacing the D and F keystones.

011'710'438 — watermark 274 · Capture: Rio on YouTube ↗ - 7
The curved violet sail
PHASE 2's signature: a violet hold arcing across the highway in a full S-curve, a green cross spark bursting where it crosses the line — 028'458'808, watermark 670, ENCOUNTER SCORE 20'230, gold hexes ringing the Shift keystone.

Watermark 670 — ENCOUNTER SCORE 20'230 · Capture: Rio on YouTube ↗ - 8
The violet beam pillar
PHASE 3 narrows the demand: a straight violet beam pillar with the yellow scratch line dead-center and four EXACTs on the row at 052'380'331 — watermark 431, below the sail's 670: the combo has broken and re-climbed, the fact the card's BREAK row later counts.

Watermark 431 — the combo re-climbs · Capture: Rio on YouTube ↗ - 9
EARLY tags join the row
PHASE 4 at 065'604'856: the beam pillar continues under an EXACT row flecked with EARLY tags, the x5.0 multiplier lit on a gauge rail already at 373.84% — the chart's stamina stretch, where near-misses start showing on the line.

x5.0 lit — gauge rail at 373.84% · Capture: Rio on YouTube ↗ - 10
A BREAK, on camera
At 079'087'534 a red BREAK tag flashes inside an EXACT row beside the yellow flick line — one of the run's eight, caught in the act. The violet wall floods the Shift side while the combo popups read 383, the chain climbing again.

One of the run's eight, mid-row · Capture: Rio on YouTube ↗ - 11
099'040'196 on the empty highway
The HUD freezes at 099'040'196 over PHASE 5 while the last violet wedge crosses the line — combo watermark 181, ENCOUNTER SCORE 92'204 — the run's final score posted before the result even loads.

PHASE 5 — ENCOUNTER SCORE 92'204 · Capture: Rio on YouTube ↗ - 12
Read the DIVE RESULT
Everything at once: SCORE 099'040'196 with rank EX+, MAX LINK 1051, HIGH SCORE 098'911'908, DIFFERENCE +000'128'288; EXACT 2145 + 157, NEAR 29 (EARLY 22 / LATE 7), BREAK 8 — summing to 2,339 — MISS GAUGE 15, and ENCOUNTER RESULT 000'092'204 with the CENTERED chip, NIA's gauge at 577.41%.

EXACT 2145 + 157 / NEAR 29 / BREAK 8 = 2,339 · Capture: Rio on YouTube ↗
FAQ
FBD 13 · EX+ 099'040'196How hard is Cold Sea FBD 13 in In Falsus?
It is Cold Sea's ceiling: MIN 4, EVO 7, ULT 10, FBD 13 — the tier above the ULT 10 chart our mother page walks, and the hardest listing the catalog carries for the song. What the tier costs in practice: 2,339 judgements across a 3:18 capture, curved violet holds by PHASE 2 and side walls flooding the lanes by PHASE 4.
What does EX+ mean here, compared with the cold-open EX card?
Both cards are on camera. The cold-open card scored 098'911'908 with NEAR 33 and BREAK 9 for rank EX; the run this page walks scored 099'040'196 with NEAR 29 and BREAK 8 for EX+. Both ranks cleared the chart with misses on the board — neither is a Perfect Dive, and this page claims only what the cards print.
Why 2,339 notes when the catalog says nothing about FBD?
Our catalog documents Cold Sea down to ULT (tap 400 + hold 319 + field 437 + flick 126 = 1,282) but publishes no FBD split. The capture documents the FBD total itself: the cold-open card's rows (2117 + 180 + 33 + 9) and the EX+ card's rows (2145 + 157 + 29 + 8) both sum to 2,339 — two independent cards, one total, quoted as played.
What do MAX LINK 1051 and the combo watermarks tell me?
MAX LINK is the longest chain of the run: 1,051 of 2,339. The watermark on the highway shows the live chain — 274 by the twin slabs, 670 under the PHASE 2 sail, then 431 in PHASE 3 and 181 at the end, each reset being one of the BREAKs the card counts. A watermark below an earlier one is the card's BREAK row, visible in real time.
What do HIGH SCORE and DIFFERENCE mean here, and where do the numbers come from?
HIGH SCORE 098'911'908 on the EX+ card is exactly the cold-open card's score, and DIFFERENCE +000'128'288 is this run over it — 099'040'196 − 098'911'908 = 128'288, a personal best by that margin. Every number on this page is read off the screen: the upload's captions carry only the song's vocals, so the frames are the source, cross-checked against the catalog where the catalog speaks.