Guide · FORBIDDEN 12
Hyaloüyne FBD 12: the FORBIDDEN rung, perfected on film
ak+q's Hyaloüyne sits at the top of the FORBIDDEN band at level 12, and this page walks the chart's first frame-documented PERFECT DIVE step by step — what the HUD reads, where the 1,653 notes land, and how the ledger closes arithmetic-tight.
Sources
- Hyaloüyne (FBD 12) PERFECT DIVE (MAX-29) — 100'001'624, all 1,653 notes EXACT (video h-1CVuAmbsE) — 도토리
- Hyaloüyne — chart table (MIN 3 / EVO 6 / ULT 10 = 1,061 notes / FBD 12 split sums 1,651 — see the two-note gap above, rev 4162) — In Falsus Wiki (Miraheze)
One filmed run plus one community chart table. Seconds are quoted on the extraction timeline of the stills this page ships; if a deep link lands a beat early, the neighbouring second shows the described content. Community figures are labelled as such and kept separate from frame reads.
Read the run first
- 1
The select screen that prices the run
The film opens on song select, not gameplay: the jacket, a red FORBIDDEN 12 badge, FREEPLAY — and a HIGH SCORE chip already holding 099'971'384. That chip is the account's prior best, which fixes the run's target: beat it, and the DIFFERENCE line on the result card becomes the margin.

FORBIDDEN 12 on select — the 099'971'384 chip is the number this dive has to beat.Watch at - 2
First gold triangle, watermark 85
The run proper opens sparse: a gold flick triangle leads into the first triple EXACT burst with the counter on 005'106'270. The chain watermark prints 85 — Hyaloüyne spends its first stretch earning notes slowly, and the film's calm open is where the SPEED 5.20 spacing settles in.

Watermark 85 at 005'106'270 — the opening earns its notes one burst at a time.Watch at
The opening, watermark 0–300
- 3
A wide slab with a slide inside
The first wide violet slab crosses the keybed with an embedded slide riding its length at 008'580'489. Wide-then-slide is the pattern Hyaloüyne uses to move hands between the side lanes; catch the slab edge on Shift or Space and the slide lands on the A S D F line without a re-grip.

The wide-then-slide pattern at 008'580'489 — slab edge first, slide after.Watch at - 4
Twin beams on the gold line
Violet and cyan beams ride parallel over the gold center line at 028'228'116, watermark 167, with a diamond hold knob waiting on the right. The pairing is the chart's first two-hand moment: one hand owns the beams, the other pre-plants on the knob.

Twin beams at watermark 167 — one hand rides, the other pre-plants.Watch at - 5
The hold curve
A violet hold curves across the keybed while gold EXACT bursts land around it at 041'468'931. Curved holds are In Falsus's pitch-bend: the cap travels, the tail stays. Keep the pressing finger light and let the bursts go to the free fingers.

Curved hold plus bursts at 041'468'931 — light finger on the cap, free fingers for the gold.Watch at
Walls, curves and the snake country
- 6
The tall violet wall
The chart's first full-height wall fills the center lanes at 056'282'410. Walls read as one object but score as many notes; the film treats it as a single hand-shape change rather than a burst, which is why the HUD barely flinches while the watermark jumps.

The first full-height wall at 056'282'410 — one shape, many notes.Watch at - 7
Past watermark 1168, the snake country
A violet hold snake crosses the line at 070'351'490 with the watermark on 1168 — two-thirds of the chart banked. The snake country is Hyaloüyne's identity section: chained holds that hand the link counter back and forth across the keybed. Anchor the weaker hand and let the stronger one travel.

Watermark 1168 — the snake country hands the chain across the keybed.Watch at
Stacks, the pyramid, the ledger
- 8
Stacked slabs at watermark 1378
Slabs descend three lanes deep at 083'350'719, watermark 1378. Stacks are where Hyaloüyne spends notes fastest; the film survives them by committing each lane to one finger and never crossing hands mid-stack.

Three-deep stacks at watermark 1378 — one lane, one finger.Watch at - 9
The last violet sweep
A violet triangle sweeps the right lanes at 089'771'132, watermark 1443 — the final third opening. From here the chart stops alternating and starts converging: everything funnels toward the closing pyramid.

Watermark 1443 — the final third converges.Watch at - 10
The closing pyramid
The pyramid spans the whole highway at 098'846'514 — Hyaloüyne's signature closer, one shape covering every lane at once. The film rides it dead-center; the pyramid's apex lands last, and the field empties behind it.

The closing pyramid at 098'846'514 — one shape, every lane.Watch at - 11
Watermark 1653, full score banked
The emptied field tells the story: the chain watermark parks at 1653 with 100'001'624 already frozen on the HUD — every note judged EXACT. This frame is the run's whole argument in one image.

1653 on the emptied field, 100'001'624 on the HUD — nothing left to judge.Watch at - 12
The card: 1,653 notes, closed three ways
The settled DIVE RESULT card reads SCORE 100'001'624, rank EX+, PERFECT DIVE — EXACT 1624 + EXACT 29, NEAR 0, BREAK 0, MAX LINK 1653. The arithmetic closes twice over: 099'971'384 + 000'030'240 = 100'001'624, and the four judgment rows sum to the MAX LINK the watermark rode all run. The community wiki's split sums to 1,651; this page trusts the film.

EX+ 100'001'624 — EXACT 1624 + 29, NEAR 0, BREAK 0, MAX LINK 1653.Watch at
Chart map: five segments
A frame-anchored reading of how Hyaloüyne FBD 12 spends its 1,653 notes. Segment boundaries are read off the HUD counter and the stills above — they describe what the film shows, not a difficulty claim.
- 1
The patient opening (watermark 0–300)
Triangles, wide slabs and the first curved hold. Nothing repeats faster than a beat, and every wide object teaches a hand-shape the back half reuses. The watermark sits at 85 twenty seconds in — patience is the chart's first lesson, and the calm open is where the SPEED 5.20 spacing settles.
- 2
The walls and weaves (300–700)
Full-height walls alternate with twin-beam crossings; the skill is committing lanes to fingers early. The film treats each wall as one hand-shape change rather than a burst, which is why the HUD barely flinches while the watermark jumps.
- 3
The snake country (700–1100)
Chained holds hand the watermark across the keybed; anchor one hand, travel with the other. This is Hyaloüyne's identity section — the chart stops alternating and starts handing the link counter back and forth, and the film's stronger hand does all the travelling.
- 4
Stacks at four digits (1100–1450)
Three-deep slab stacks and the last sweeps — the densest stretch, survived lane-by-lane. Stacks are where Hyaloüyne spends notes fastest, and the film never crosses hands mid-stack: one lane, one finger, all the way to watermark 1443.
- 5
The pyramid and the ledger (1450–1653)
The closing pyramid, then the emptied field at watermark 1653 and the settled card. One shape covers every lane at once, the apex lands last, and the field empties behind it — the run's whole argument in the final three seconds.
Fingering on the six-key keybed
Mapped to the site's hand-placement system: side lanes to Left Shift (pinky) and Space (thumb), centre lanes A-S-D-F to ring, middle and index. What follows is how the film's hand positions map onto that system.
- →Slab edges go to the side lanes: left edge on Shift, right edge on Space, so the A S D F fingers stay free for what rides inside.
- →The snake country wants an anchor: plant ring finger on D for chained caps and let middle and index cover the travelling tail.
- →Three-deep stacks are lane-committed — thumb owns Space, pinky owns Shift, and the middle two fingers split S and D; no hand crosses mid-stack.
- →The closing pyramid is one shape: all five keys bracketed at once, apex note last — practise the bracket, not the notes.
Deck and encounter notes
What the film actually shows about the run's loadout, plus how the site's card vocabulary maps onto it. Card identities are not legible at speed, so nothing here quotes effects.
- →The result card's IOTA row prints ENCOUNTER UNLINKED — this dive ran with no encounter attached, and there is no encounter settlement line to read. What an encounter would have changed is not on film, so this page quotes none of it.
- →The HUD song card reads FBD 12 and SPEED 5.20 at five separate timestamps, no Assist Mode banner ever appears, and the card's BONUS slots are the plain ones — that combination is this page's evidence for an assist-free, vanilla-modifier run.
- →The HIGH SCORE chip holds 099'971'384 on both the select screen and the result card, which is what makes DIFFERENCE +000'030'240 the margin over the account's own prior best. No deck threshold gates this run — it is pure execution.
Practice notes
- →The sparse stretch before watermark 85 is the metronome check: the opening earns its notes one burst at a time, so use it to lock the SPEED 5.20 rhythm before the walls arrive.
- →The snake country loops cleanly: deep-link the film at ?t=108 and run the chained holds as one segment until the anchor-hand travel feels automatic.
- →The closing pyramid is a shape, not a sequence — deep-link ?t=150 and drill the all-five-keys bracket until the apex note lands last without a re-grip.
FAQ
How many notes does Hyaloüyne have on FBD 12?
1,653 judged notes — EXACT 1624 + EXACT 29, NEAR 0, BREAK 0, and the MAX LINK chip agrees at 1653, as does the chain watermark's final value on the emptied field. The community wiki's split for the chart sums to 1,651; this page records that two-note gap as an unresolved catalog discrepancy and treats the film as the evidence.
What score is a PERFECT DIVE on Hyaloüyne FBD 12?
The filmed one settled at 100'001'624 rank EX+ — HIGH SCORE 099'971'384 plus DIFFERENCE +000'030'240. The DIFFERENCE chip compares against the account's own prior best, so another player's PERFECT DIVE lands on a different score; the ledger that must close is SCORE = HIGH SCORE + DIFFERENCE, with all 1,653 notes EXACT.
Who first perfected Hyaloüyne FBD 12?
The first frame-documented PERFECT DIVE we know of is 도토리's — a 1080p capture titled Hyaloüyne (FBD 12) PERFECT DIVE (MAX-29), uploaded October 6, 2026, which this page walks frame by frame. The community wiki's Hyaloüyne hub lists no receipt page for the chart as of October 7, 2026.
What SPEED and assist settings does the filmed run use?
SPEED 5.20, readable on the HUD song card at five separate points in the film. There is no Assist Mode banner and the IOTA row reads ENCOUNTER UNLINKED — an assist-free run with no encounter attached, which is what makes the card's four judgment rows quotable as chart data.
Related
Written for infalsustips.com from our own demo testing and community research. Fact-checked against: In Falsus Wiki (Miraheze) (CC BY-SA 4.0) · In Falsus Wiki (Fandom) (CC BY-SA)
Data reflects demo v0.3.1 · being re-verified on 1.0 · Unofficial fan site — In Falsus © lowiro