init() — FBD 11, Perfect Dive

• ▸Single source: 도토리's FORBIDDEN 11 perfect dive of kamome sano's init() (uploaded 2026-09-14) — the catalog's FBD 11 chart from Arc 2: A Past Best Untold, played at SPEED 4.50 with keyboard lanes reading Shift, A, S, D, F and Space.
• ▸The cross-check lands exactly: the result card's four rows — EXACT 1452 + 17, NEAR 0, BREAK 0 — sum to 1,469, matching the catalog's FBD note split (tap 221 + hold 463 + field 626 + flick 159) judgement for judgement.
• ▸A perfect dive, and a personal best by twelve points: HIGH SCORE already read 100'001'440 on the detail screen before the dive, and DIFFERENCE carries +000'000'012 — 100'001'452 = 100'001'440 + 12, read as arithmetic, not interpreted.
• ▸Density is the story: field notes are 626 of 1,469 and holds another 463 — together roughly three quarters of the chart — so the highway spends most of the dive bent into ribbons and lit gold at the judgement line.

One video backs every still below: 도토리's In Falsus perfect dive of init() on FORBIDDEN 11 (2:51, uploaded September 14, 2026). Deep links in each step jump to the matching moment.

The upload has a caption track, but it carries only stray lyric fragments picked up from the song — no narration — so every fact below is screen forensics cross-checked against the song catalog. The capture carries no recorder overlay of any kind — no camera, no channel watermark, no burned-in text — so the stills stand exactly as recorded; the only badges on screen (the red FBD 11 chip, the in-play song panel, the lane key labels) are game UI, quoted as seen. The video itself is untouched and linked in full. Deep-link seconds follow the decode-accurate timeline of the upload and can land a frame or two off; every still was verified individually.

Levels and the note split come straight from the site's song catalog (game version 1.0.2c) — the numbers the result card is checked against in step 11, to the judgement.

→ 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: FORBIDDEN 11

   The detail screen states the terms: a red 11 beside DIFFICULTY FORBIDDEN — the game's own spelling of the FBD axis, quoted as seen — with HIGH SCORE already at 100'001'440, the jacket crediting kamome sano with ILLUST もあち, and FREEPLAY on the right. That high score matters later: this dive starts from a mark, not from zero.

   

2. 2

   Stage the dive at 000'000'000

   The highway opens empty with the score at 000'000'000 and the in-play song panel reading init() / kamome sano over an FBD 11 chip and SPEED 4.50. The lane keys read Shift on the left wing, A S D F down the middle and Space on the right — a keyboard dive, quoted as seen. No Assist Mode slot appears anywhere in the capture.

   

3. 3

   Open under the first hold ribbon

   The first pattern arrives already holding: a wide violet ribbon sweeps the left lanes with the combo counter on 18 and an EXACT pair posting at the line, the HUD at 001'221'091. A chart whose two biggest buckets are field (626) and holds (463) does not ease in — it grabs immediately.

   

4. 4

   Split the beams, catch the gold wedge

   A violet beam and a cyan beam stack two lanes while a gold hexagon wedge flares at the bottom edge, judged EXACT twice with the HUD at 018'228'768 and the combo on 268. Flicks are the chart's smallest share — 159 of 1,469 — but the field cells they ride announce themselves in gold exactly like this.

   

5. 5

   Bend under the curved panel

   A translucent violet panel arcs across the right half of the highway while the gold field cells light the S, D and F lanes at the judgement line, judged EXACT twice with the HUD at 030'694'448 and the combo on 451. The panel geometry bends because the notes underneath do — this chart rarely draws a straight line for long.

   

6. 6

   Take the cyan slab wall

   A cyan slab runs nearly the full height of the right side while a yellow hexagon cell waits on D, judged EXACT with the HUD at 040'317'185 and the combo on 593. Past the 40-percent mark, the field's 626 notes have already made the bottom edge a permanent light show.

   

7. 7

   Ride the S-curved hold

   The chart's signature shape: one violet hold ribbon sweeps an S-curve from the centre lane down to the right, posting EXACT three times across the line with the HUD at 050'214'949 and the combo on 738. The 463 holds spend themselves in bends like this — never straight down, always moving under your fingers.

   

8. 8

   Cross the full diagonal

   A violet beam enters at the top centre and crosses the whole highway to exit at the bottom left, judged EXACT twice with the HUD at 059'536'791 and the combo on 875. It is the widest single line the chart draws, and it still ends in an EXACT — every one of this dive's 1,469 judgements will.

   

9. 9

   Absorb the last note: 1469

   The highway empties and the chart posts its own total — 1469, watermarked across the lanes — as the final note lands with the HUD at 100'001'312. The count on screen matches the catalog's FBD split to the note: 221 + 463 + 626 + 159.

   

10. 10

    PERFECT DIVE

    The banner takes the screen over the emptied highway — the game's verdict for a dive with nothing below EXACT. NEAR 0 and BREAK 0 are still a second away from being confirmed on the card, but the banner only appears when they are both zero.

    

11. 11

    Read the result card

    The card settles: SCORE 100'001'452 with rank EX+ beside it, MAX LINK 1469 chaining the whole chart, and the four rows — EXACT 1452 + 17, NEAR 0, BREAK 0 — summing to 1,469, the catalog's FBD split exactly. HIGH SCORE read 100'001'440 before the dive and DIFFERENCE carries +000'000'012: a personal best by twelve points, read as arithmetic, not interpreted. The IOTA strip reads ENCOUNTER UNLINKED, and no MISS GAUGE row appears — a perfect dive has no misses to gauge.

    

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