Cold Sea — ULT 10 Sightread

• ▸Single source: TrappyTheDemon's ULT 10 sightread of Sakuzyo's Cold Sea (uploaded 2026-09-12) — the catalog's ULT 10 chart from Arc 3: Heaven's Chains, played with the CONNECT pair NIA ≈ KEATS and an Assist Mode Enabled tag on screen.
• ▸Every note accounted for: the result card's 1,282 judgements — EXACT 1001 + 128, NEAR 88, BREAK 65 — match the catalog's ULT split (tap 400 + hold 319 + field 437 + flick 126) exactly.
• ▸A clear, not a full combo: 091'498'661 for rank A, MAX LINK 178, MISS GAUGE 15 — and a first registered score, since HIGH SCORE read a dash before the dive.
• ▸Scope note: the catalog also lists FBD 13, but the anchor here is the ULT 10 video as played — difficulty claims stop at what the video shows, and Assist Mode is quoted as seen, not interpreted.

One video backs every still below: TrappyTheDemon's In Falsus sightread of Cold Sea on ULTIMATE 10 (3:06, uploaded September 12, 2026). Deep links in each step jump to the matching moment.

The capture carries the creator's live-stream badge on its left edge — recorder overlay, not game UI — patched out of every still; the video itself is untouched. The upload opens on the detail screen with ULT 10 already bracketed. The score counts up on the result card; every number here is quoted from the settled card at 3:00.

Levels and the note split come straight from the site's song catalog (game version 1.0.2c) — the same numbers the result card is checked against below.

→ In Falsus Song List — All 70 Tracks with Chart Levels→ Difficulty Levels

One step per frame, in play order. Seconds in each credit link follow the decode-accurate timeline of the upload and can land a frame or two off.

1. 1

   Confirm the chart: ULTIMATE 10

   The detail screen states the terms: the SELECT DIFFICULTY rail reads 4 / 7 / 10 / 13 with ULT 10 bracketed, Cold Sea · Sakuzyo on the nameplate and ILLUST fixro2n under the jacket. The run this page walks is that ULT 10 chart — the catalog also lists an FBD 13, which no capture here quotes.

   

2. 2

   Read the CONNECT intro

   Before the first note, the highway intro pairs NIA with KEATS — and shows an Assist Mode Enabled tag under the pairing. It is quoted exactly as shown and never interpreted: the badge is part of the capture, and the result card repeats it in its IOTA row.

   

3. 3

   Hold the opening field plate

   The chart opens with a wide purple field plate holding the center lanes at combo 8, an EXACT pair blinking on the beat line and the score already at 001'950'131. The HUD reads ULT 10 · SPEED 7.00, and the side lanes carry the player's own key labels — Umschalt and Leer, Shift and Space on a German keyboard.

   

4. 4

   Track the hexagon field cells

   Field notes arrive as yellow hexagon cells firing along the bottom edge while a teal beam crosses the center. One line shows the honest spread of outcomes — EXACT, then EARLY NEAR, then EARLY NEAR again — with the score at 015'494'943.

   

5. 5

   Absorb the first BREAK

   Against walls of red crystal shards, the judgments mix on one line: EARLY EXACT, EARLY BREAK, EXACT. Sixty-five BREAKs land over the run — enough to bend the gauge, never enough to end the dive.

   

6. 6

   Ride the side-lane burst

   A triple EXACT holds the beat line at 055'044'185 while a yellow burst fires up the left side lane. The edges of Cold Sea are not decoration — the Umschalt and Leer lanes take real work between center-lane plates.

   

7. 7

   Breathe through the quiet stretch

   The chart thins out around 066'387'348: one purple wedge, one EXACT, sparks on the side lanes. It is the recovery room between set pieces — the place to reset hands before the finale.

   

8. 8

   Survive the giant wedge

   The biggest single object in the chart: a diagonal purple wedge spanning half the highway at combo 165, an EXACT pair on its left edge and another EXACT to the right at 083'160'136. Hold the shape, don't chase the sparks.

   

9. 9

   Take the DIVE CLEARED banner

   The final note lands and the banner settles it: DIVE CLEARED across a darkened highway, the score frozen at 091'498'661 in the corner and the last combo reading 67.

   

10. 10

    Read the result card

    The settled DIVE RESULT card: rank A on 091'498'661, EXACT 1001 + 128, NEAR 88, BREAK 65 — 1,282 judged, exactly the catalog's note count — MAX LINK 178, MISS GAUGE 15, HIGH SCORE a dash, DIFFERENCE +091'498'661. The IOTA row lists an ASSIST MODE slot, quoted as seen.

    

11. 11

    Catch the unlock

    A Song Unlocked banner over Cold Sea's own jacket art follows the card — what the game unlocked is not stated on screen, so the banner is quoted as it appeared. A Go to Next prompt returns the result card, and the video ends there.

    

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