GUIDE · 04

RHYTHM TIPS

CONTROLS · NOTES · JUDGEMENTS

In Falsus is a 3D vertical-scrolling rhythm game with an unusual demand: one hand plays a 6-key keyboard layout while the other steers a mouse through Field and Flick notes. This guide breaks down every note type, judgement, difficulty, and clear type so the chart stops being noise.

THE CONTROL SCHEME

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Charts scroll vertically through a 3D playfield. Inputs are split across two devices, and both are mandatory — this is the first thing that makes In Falsus different from a typical keysmash rhythm game.

KEYBOARD — 6 FLOOR LANES

One hand covers six Floor lanes, defaulting to LShift / A / S / D / F / Space. That layout strains the pinky over long charts, so rebinding to a home-row spread is the most common first tweak.

MOUSE — FIELD & FLICK

The mouse handles everything spatial: holding the cursor inside Field regions and swiping directional Flicks. On FBD difficulty it also covers full-width notes the keyboard cannot reach.

The skill ceiling of In Falsus is not raw speed — it is doing both of these at once without either hand stealing attention from the other. Practice them separately, then together.

In Falsus rhythm gameplay during Hyaloüyne — hold notes crossing the lower judgement line on the floor lanes while the combo counter climbs, keyboard and mouse inputs combined — OFFICIAL FOOTAGE · FLOOR + FIELD INPUTS

Want to tune the layout to your hands? Rebinding is expected in this genre — the keybinds guide covers remapping, ergonomic setups, and why some keys stop registering on cheap keyboards. → In Falsus keybinds guide

NOTE TYPES

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Four note types make up every chart. Two belong to the keyboard, two belong to the mouse.

TAP

The basic unit. Press the lane key as the note crosses the judgement line. Everything else in the game is measured against your Tap accuracy.

HOLD

Press the head on time and keep the key down until the tail ends. There is no release timing — holding too long is never punished, so Holds are free EXACTs and a moment to reset your hand.

FIELD

A mouse note: keep the cursor inside the marked region, which stays purple while you are in and turns red when you stray. Stay outside too long and a brief input dead state kicks in — your hits stop registering until you recover.

FLICK

A directional mouse swipe. Yellow means flick left, green means flick right, and the swipe only needs to overlap the note's horizontal span — it does not have to cover the full length.

WIDE NOTES — full-width notes appear only on FBD difficulty and are mouse-only. They are the signature wall of Forbidden charts.

JUDGEMENT & COMBO

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Every note receives one of these judgements. Learn to read the LATE/EARLY suffixes — they are a built-in timing coach.

EXACTA perfect hit, shown with a shiny effect. EXACTs build your combo, maximize score, and fill the Resonance gauge.

EXACT LATE / EARLYStill an EXACT, but flagged with your timing direction. A stream of LATE flags means you are consistently behind the beat — correct it before it becomes habit.

NEAR LATE / EARLYA looser hit: keeps you alive and counts toward Full Link, but scores less and does not fill Resonance. Too many NEARs is accuracy leaking away.

BREAKA miss. Resets your combo, damages your Resolve in encounters, and — when the opponent BREAKs — they take ×5 crit damage from you. Avoiding BREAKs entirely is what separates clear types.

Grade thresholds

Grade	Score
EX+	≥ 99M
EX	≥ 98M
AA	≥ 95M
A	≥ 92M
B	≥ 85M
C	≥ 80M
D	< 80M

Resonance gauge

EXACT hits fill the Resonance gauge. When it fills, your hits crit for ×5 damage for the rest of the current Phase — then the gauge resets as the next Phase begins. In encounters, this is your single biggest damage spike, so protect your accuracy through the dense back half of each Phase.

THE DIFFICULTY LADDER

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Four difficulties, and each one changes the rules of your hand — not just the note count.

MIN

MIN — MINIMAL

4K with static finger positions. Four lanes, no shifting. The teaching difficulty — learn the game here.

EVO

EVO — EVOLVED

5K where the active lanes shift mid-chart. Your hand must relocate without looking. The bridge between learning and playing.

ULT

ULT — ULTIMATE

The full 6K layout. All six Floor lanes live at once, demanding real one-hand independence.

FBD

FBD — FORBIDDEN

6K plus wide, full-width notes that only the mouse can clear. The peak of the demo — à la mode FBD 11 is the current ceiling.

Move up when your current difficulty feels readable, not when it feels easy: MIN until judgements are consistent, EVO until lane shifts stop surprising you, ULT until six lanes feel like home. FBD is a final exam, not a classroom.

In Falsus song select screen showing MIN 2, EVO 5 and ULT 9 difficulty choices for Cryogenic with a locked fourth chart slot — OFFICIAL SCREENSHOT · SONG SELECT

CLEAR TYPES

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Finishing a chart is not binary — In Falsus grades how you survived it.

PERFECT DIVE

Every note EXACT. The ultimate clear — no NEARs, no BREAKs, nothing but shiny.

FULL LINK

No BREAKs, with at least one NEAR. The practical target for encounter farming — it qualifies for Iota drops.

DIVE CLEARED

Finished with HP at 0 or above despite BREAKs. Still counts for Iota drops when the encounter is Connected.

DIVE FAILED

HP dropped below 0. No clear, no drops — regardless of how far into the chart you got.

Farming rule of thumb: Dive Clear or better + Encounter Connected = Iota. Anything less pays nothing.

PRACTICE ROUTINE

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A five-step routine built from the demo's six songs. Repeat each step until it feels boring — boredom is readiness.

1
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Ghost Ray, Ordirehv, and à la mode (all MIN 1). Focus on clean EXACT judgements and a relaxed rebind-friendly hand position.
2
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Cryogenic (MIN 2), Hyaloüyne and Deep Into The Vibe (MIN 3). Start watching the LATE/EARLY flags and correct your timing bias.
3
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Ghost Ray and Ordirehv (EVO 4), then à la mode (EVO 5). Keep your eyes on the chart, not your hand — the shifts are telegraphed.
4
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Ghost Ray and Ordirehv (ULT 8), Cryogenic and à la mode (ULT 9), Hyaloüyne and Deep Into The Vibe (ULT 10). This is where Resonance timing starts paying real damage.
5
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Ghost Ray 10 and Ordirehv 10 first — then à la mode 11, the demo's final wall. Expect the wide notes, not just the density, to end your early runs.

Song levels and unlock order are in the demo guide. → Demo Guide

Beginner Tips →20 essential tips across setup, rhythm, cards, and encounters.Demo Guide →Songs, unlocks, and the fastest progression path in the free demo.Cards Explained →Iota, Blueprints, penalties, and the damage formula.Demo Songs →Chart levels, drop pools and counters for all 6 demo songs.Encounter Simulator →Run the encounter math on your loadout before you Dive.Iota Farming →Find the fastest encounters to farm the Iota you need.