Yunyun Syndrome All 39+ Endings Route Map: Multi-Playthrough Planning, Soft Lock Prevention, and Rhythm Optimization

Table of Contents

1. What is Yunyun Syndrome?
2. All 39+ Endings: Complete Route Map
   • 2.1 Prologue Endings
   • 2.2 IF Endings: 5-Star Conspiracy Trends
   • 2.3 True Endings
   • 2.4 Stat Threshold Bad Endings
   • 2.5 Hidden Action-Triggered Endings
3. The 6-Run 100% Completion Strategy
4. Save Management & Soft Lock Prevention
5. DENPA & CONSPIRACY System Mechanics
6. Doki Doki Farming: 999% Threshold Guide
7. Rhythm Judgment & Combo Optimization
8. Performance Tuning: 120Hz and Beyond
9. Final Verdict: Is It Worth It?

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What Yunyun Syndrome Actually Is

Yunyun Syndrome Rhythm Psychosis is a rhythm adventure game where players ride the wave of denpa songs to broadcast conspiracy documents to the world. It launched in April 2026 with demo downloads surpassing 150,000 before release.

The game has a simple premise with complex execution: your rhythm performance affects the narrative. Miss notes, and conspiracy influence shifts. Hit perfects, and denpa percentage climbs. The ending changes based on a web of variables that most players do not discover until their third playthrough.

Key Metrics

Metric	Range	What It Affects
Denpa %	0-100%	Unlocks diary entries, triggers denpa transmission
DOKIDOKI %	0-999%	TOO CUWUTE achievement, affects Qtie’s emotional state
HYPE %	0-999%	Triggers selected trends, affects conspiracy influence
YUNYUN %	0-999%	Triggers yunyun soul integration mode
Conspiracy Influence	0-100%	Determines true ending path, affects final choice

The April 2026 Update

The launch update added:

• Online ranking function
• New difficulty levels
• Automatic audio-sync adjustment
• Minor bug fixes
• Support for 10 languages (Russian, Portuguese, French, German, Polish added)

I completed Yunyun Syndrome six times before seeing all 39+ endings. The first playthrough got me the Q † CHANNEL prologue ending and one IF ending. The second, I focused on denpa percentage and unlocked the DONIDEMONARE true ending. The third, I missed every note in two charts intentionally to raise conspiracy influence. The fourth and fifth were dedicated to farming all 5-star conspiracy IF endings. The sixth was cleanup — filling the remaining bad endings and hidden triggers. The game rewards experimentation, but it also punishes careless save management. Read the soft lock section before you start.

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All 39+ Endings

Yunyun Syndrome has 39+ endings. A simple decision can change the ending. This is one video game where reading a diary entry at the wrong time locks you out of an ending for that playthrough. Pushing a stat to 999% too early can permanently block the true ending on your current save. The game has 60 save slots — and filling them all triggers one of the endings. Plan accordingly.

Ending Overview

Category	Count	Key Trigger
Prologue Endings	5	Complete or fail prologue, idle, trash yunyun
IF Endings (5-Star Conspiracy)	18+	Trigger specific ★5 conspiracy trend
True Endings	2	100% DENPA + final choice
Stat Threshold Bad Endings	7	Push DOKIDOKI/HYPE/YUNYUN/Followers to limit
Action Required Hidden Endings	7	Physical actions after maxing trends

2.1 Prologue Endings

These endings are triggered during or immediately after the prologue. They are the easiest to get and serve as your introduction to the game’s branching logic.

Achievement	Ending	How to Complete
Q † CHANNEL	Prologue Complete	Finish all prologue rhythm charts. This is the mandatory first ending.
YUN DIE	YUN DIE Ending	Drag yunyun into the trash 4 times in a row
There is no next time.	YUN DIE x3	Get YUN DIE ending 3 times in a row
Don’t leave me all alone…yu.un	Loneliness Ending	Go into room search menu, idle for exactly 30 seconds, then play any song
Yun are an idiot.	HEEERE’S MOMMY MODE	Open and close “HEEERE’S MOMMY MODE” panic screen repeatedly until you get a rare image variation

The “Don’t leave me all alone…yu.un” ending is one of the most atmospheric in the game. The 30-second idle timer triggers a text prompt about mushrooms growing indoors. Play any song immediately after to unlock it. I sat at my desk staring at a loading screen for half a minute before realizing what was happening. That is the denpa.

2.2 IF Endings (5-Star Conspiracy Trends)

After completing Q † CHANNEL, CONSPIRACIES become available. These are triggered by selecting specific 5-star (♥♥♥♥♥♥♥♥) conspiracy cards and maxing out their influence through rhythm gameplay. Each conspiracy corresponds to a unique IF ending. Higher-rarity cards create higher-rarity conspiracies, so focus on improving card quality.

Achievement	Ending	Conspiracy Trend to Max Out
The ones in Heaven and the ones in Hell are dead all the same.	Heaven/Hell Dead	#Yunyun is the supreme goddess and only believers will be saved
Miracles and magic can only do so much.	Magical Screening	#Super Hero Time is sponsored by a magical order and is finding kids with magical aptitude
Taxes don’t go away just cuz you’re broke.	PixiQ Scammers	#Toxic fake fans are manipulating popularity charts on orders from secret society PixiQ
Rim de Lacent.	Fictional Dimension	#Fiction is created when the brain receives signals from phenomena in other dimensions. Then export 100 images from gallery.
Suffering From Worthlessness?	SFW Mantra	#“Stop, drop and roll” is a mantra for self-enslavement and saying it destroys your sense of self
Qtie The Cuh-raaaaazy Denpa Beauty.	Hikikomori Dream	#This world is the dream of a hikikomori girl and her fantasies have become reality
The Internet is no longer.	Bot Net	#Posts on the net are all written by bots and none of them are by humans
ERROR. RESTART GAME.	Game Reset	#Parallel worlds are limited by save slots. Must fill all 60 save slots first.
The Fictional Character	Fourth Dimensional Velocity	#Qtie is completely fictional and a character from a game. Then drag yunyun to bottom of screen.
The Debug Menu	Debug Features	Tinfoil hat keyboard equipped. #Tinfoil hats unlock debug features. Then hit CTRL + ENTER.
The Awakened Otakus	Otaku Communication	#Otakus are using imagination to converse with their oshis
Kitty Propaganda	Cat Rulers	#Cats are ruling Earth through viral videos
Screaming Beaver	Agarthan Beaver	#Agardian beaver is invading the surface
Reptilian Nakige	Reptilian Emotions	#Reptilians learn feelings from sad visual novels
Demon Romance	Romance Productivity	#Romance genre is belittling human productivity
Supreme Goddess	Yunyun Deity	#Yunyun is a deity who only saves believers
Magical Screening	Magical Kids	#Sunday cartoons screen kids for magical aptitude
DQN Syndicate	DQN Crime	#Crime group using school bullying as training

Each IF ending requires you to select the correct conspiracy trend from the post-creation menu after clearing a rhythm chart. Choose cards with more stars for faster influence gain. The conspiracy rarity directly determines DENPA gained: 1★ = 300 DENPA, higher stars give proportionally more. Focus on one conspiracy per playthrough to avoid wasting DENPA on trends you do not need.

2.3 True Endings

The true endings require reaching 100% DENPA LEVEL and triggering denpa transmission to Qtie. This is the core narrative path.

Achievement	Ending	How to Complete
DONIDEMONARE	True Ending - Rejection	Reach 100% DENPA LEVEL, trigger denpa transmission, defeat Patootie with 70%+ conspiracy influence, reject yunyun’s offer at the final choice
Engage Link	Post-True Ending	After DONIDEMONARE, max out ALL remaining CONSPIRACIES on social media. The final piece of the digital puzzle clicks into place.

2.4 Stat Threshold Bad Endings

Pushing any stat to its absolute limit triggers a bad ending. These are designed as warnings — they block the true ending if triggered prematurely.

Achievement	Ending	How to Complete
TOO KAWAII!	DOKIDOKI Limit	Push DOKIDOKI level to 999%
Everything will be yunified.	YUNYUN Limit	Push YUNYUN level to 999%
It’s pure chaos.	HYPE Limit	Push HYPE level to 999%
Brb, ascending!	Follower Cap	Followers reach 9,999,999,999 (the cap)
Q.E.D!	Denpa Rejected	Denpa Transmission with signal rejected
Clearly Paranoid Qtie	Conspiracy Max	Trigger the ★5 CONSPIRACY that normally cannot be activated: #Qtie has been replaced by a rando catfish impostor. Miss every note in two charts to max conspiracy influence.
Have a good sleeps!!!	Uninstall	Uninstall Yunyun

WARNING: Do NOT push DOKIDOKI, HYPE, or YUNYUN to 999% before completing the true ending route on a save file. These bad endings can lock you out of the true ending permanently on that save. Farm these stats on a dedicated cleanup playthrough after DONIDEMONARE.

2.5 Action Required Hidden Endings

A few endings require you to physically do something after or while maxing out a trend. These are the most obscure and easily missed.

Achievement	Ending	How to Complete
Look out for that fourth dimensional velocity.	The Fictional Character	Max out the trend stating Qtie is a fictional game character, then manually drag and drop yunyun to the absolute bottom of your screen
The Debug Menu	Debug Features	Equip the tinfoil hat keyboard. Max out the trend claiming tinfoil hats unlock debug features, then hit CTRL + ENTER
ERROR. RESTART GAME.	The Game Reset	Physically fill all 60 save slots in the game, then max out the trend about parallel worlds being limited by save slots
Rim de Lacent.	The 2D Dimension	Max out the trend about fiction coming from other dimensions, then export 100 images straight from your gallery
Sleepy time now!	Time Limit	Game time exceeds 23 hours, 59 minutes, and 59 seconds per day
The 2D Dimension	Gallery Export	Export 100 images from gallery after maxing the fiction dimension conspiracy
Sleepy time now!	Daily Limit	Game time is limited to 23:59:59 per day. Exceeding this triggers the ending.

The “Game Reset” ending is both a joke and a genuine warning about save management. The game has exactly 60 save slots. If you fill all of them, you cannot save any more progress — and triggering the parallel world conspiracy trend with all slots full gives you this ending. I filled 58 slots across my first five playthroughs before realizing what was happening. Delete old saves strategically.

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Multi-Playthrough Planning: The 6-Run 100% Route

Yunyun Syndrome is not designed for single-playthrough completion. With 39+ endings, multiple stat thresholds, and save-slot limitations, you need a structured approach. Here is the route I used to achieve 100% across six playthroughs.

Playthrough 1: Foundation Run

Goal: Q † CHANNEL + basic exploration + 1-2 IF endings

Step	Action	Notes
1	Complete all prologue rhythm charts	Unlocks Q † CHANNEL
2	Explore Qtie’s desktop	Drink energy drink, find diary.zip (password: “rim de lacent”)
3	Read Diaries 1, 2, and 7	Required for DONIDEMONARE route
4	Play songs, build DENPA naturally	Do not focus on any single stat
5	Trigger 1-2 conspiracy trends	Pick ones that interest you, do not worry about optimization
6	Save at Slot 1	Label: “PT1 - Foundation”

Expected Endings: Q † CHANNEL, YUN DIE (if you throw yunyun in trash), 1-2 IF endings

Playthrough 2: True Ending Route

Goal: DONIDEMONARE true ending

Step	Action	Notes
1	Start fresh save	Use Slot 2
2	Complete prologue	Faster this time, you know the charts
3	Read Diaries 1, 2, 7 in order	Critical for DONIDEMONARE
4	Open diary.zip	Password: “rim de lacent”
5	Build DENPA to 100%	Focus on high-star conspiracy cards for DENPA gains
6	Trigger denpa transmission	At 100% DENPA LEVEL
7	Build conspiracy influence to 70%+	Miss notes intentionally in two charts for “Clearly Paranoid Qtie” path
8	Defeat Patootie	Final rhythm battle
9	Reject yunyun’s offer	This triggers DONIDEMONARE

Expected Endings: DONIDEMONARE, Clearly Paranoid Qtie (if you miss all notes)

The DONIDEMONARE route is the most specific and unforgiving sequence in the game. If you read diary entries out of order, or if you push DOKIDOKI/HYPE/YUNYUN too high before reaching 100% DENPA, you can lock yourself out. Save after each diary entry. Save after denpa transmission. Save after every major milestone.

Playthrough 3: Conspiracy Farming (Part 1)

Goal: 8-10 IF endings via 5-star conspiracy trends

Step	Action	Notes
1	Start fresh save	Use Slot 3
2	Complete prologue quickly	Skip unnecessary exploration
3	Select conspiracy trends one at a time	Focus on ★5 rarity cards
4	Max out each trend’s influence	Play songs, choose correct trend cards after each clear
5	Save after each IF ending	Use separate slots or overwrite strategically

Target Conspiracy Trends:

• Supreme Goddess (#Yunyun is the supreme goddess)
• Magical Screening (#Super Hero Time magical order)
• PixiQ Scammers (#Toxic fake fans manipulating charts)
• Hikikomori Dream (#This world is a hikikomori’s dream)
• Bot Net (#Posts are written by bots)
• Otaku Communication (#Otakus converse with oshis)
• Cat Rulers (#Cats ruling Earth)
• Reptilian Nakige (#Reptilians learn from visual novels)

Playthrough 4: Conspiracy Farming (Part 2)

Goal: Remaining IF endings + action required endings

Step	Action	Notes
1	Start fresh save	Use Slot 4
2	Complete remaining conspiracy trends	Focus on ones you missed in PT3
3	Trigger action required endings	Drag yunyun to screen bottom, CTRL+ENTER, etc.

Target Conspiracy Trends:

• DQN Syndicate (#Crime group using bullying)
• Demon Romance (#Romance belittling productivity)
• Agarthan Beaver (#Beaver invading surface)
• Fictional Dimension (#Fiction from other dimensions) → then export 100 images
• Debug Features (#Tinfoil hats unlock debug) → equip tinfoil hat keyboard, hit CTRL+ENTER
• Fourth Dimensional Velocity (#Qtie is fictional) → drag yunyun to bottom of screen

Playthrough 5: Stat Threshold Bad Endings

Goal: DOKIDOKI 999%, HYPE 999%, YUNYUN 999%

Step	Action	Notes
1	Start fresh save	Use Slot 5
2	Farm DOKIDOKI to 999%	Easy difficulty, perfect hits on shortest chart
3	Farm HYPE to 999%	Switch to HYPE-focused cards
4	Farm YUNYUN to 999%	Switch to YUNYUN-focused cards
5	Trigger follower cap ending	Build followers to 9,999,999,999

CRITICAL: Do NOT do this on the same save as your true ending route. These bad endings permanently block the true ending on that save file. Use a dedicated playthrough.

Playthrough 6: Cleanup and Hidden Endings

Goal: Remaining endings, joke endings, time-based endings

Step	Action	Notes
1	Start fresh save	Use Slot 6
2	Trigger “Sleepy time now!”	Let game time exceed 23:59:59
3	Trigger “Have a good sleeps!!!”	Uninstall and reinstall (or trigger the specific condition)
4	Trigger “Q.E.D!”	Attempt denpa transmission with rejected signal
5	Complete Engage Link	If not already done after DONIDEMONARE

DENPA Gain Reference

Understanding DENPA gain is critical for planning:

Source	DENPA Gained
Song Clear (any difficulty, any rank)	250-300
First-Time Clear Bonus	+120
Rank A or Higher Bonus	+120
Full Combo Bonus	+120
95%+ Rate Bonus	+120
1★ Conspiracy	300
Higher Star Conspiracy	Proportionally more
Viewing New Endings	Varies

Strategy tip: Each difficulty (NORMAL, HARDCORE GAMER, TRYHARD, DEGENERATE) has independent achievement bonuses. Clearing a song on all four difficulties for the first time gives you 4 × 120 = 480 bonus DENPA per song. Plan your DENPA farming to hit these achievement bonuses early.

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Soft Lock Prevention: Save Management and Route Order

Soft locks are the most frustrating aspect of Yunyun Syndrome’s design. Unlike hard crashes, soft locks let you keep playing but permanently block certain endings on your current save file. Here is what causes them and how to avoid them.

Soft Lock Triggers

Trigger	What It Blocks	Prevention
DOKIDOKI reaches 999%	True ending on current save	Farm DOKIDOKI on a dedicated cleanup playthrough AFTER DONIDEMONARE
HYPE reaches 999%	True ending on current save	Same as DOKIDOKI — farm after true ending
YUNYUN reaches 999%	True ending on current save	Same as above
All 60 save slots filled	All future saves, triggers “ERROR. RESTART GAME.” ending	Delete old saves regularly. Use the Game Reset ending strategically.
Reading diary entries out of order	DONIDEMONARE route	Read Diary 1 → Diary 2 → Diary 7 in sequence
Pushing conspiracy influence too early	Certain IF endings	Build conspiracy influence only after reaching 100% DENPA
Accepting yunyun’s offer instead of rejecting	DONIDEMONARE ending	Reject at the final choice after Patootie defeat

Save Slot Management

The game has exactly 60 save slots. This is intentional — filling them all triggers the “ERROR. RESTART GAME.” ending. Here is my save slot strategy:

Slot 1: PT1 - Foundation (Q † CHANNEL + exploration)
Slot 2: PT2 - True Ending (DONIDEMONARE route)
Slot 3: PT3 - Conspiracy Farming Part 1
Slot 4: PT4 - Conspiracy Farming Part 2 + Action Required
Slot 5: PT5 - Stat Threshold Farming (DOKIDOKI/HYPE/YUNYUN)
Slot 6: PT6 - Cleanup + Hidden Endings
Slots 7-60: Individual IF ending saves (one per ending for easy reference)

I filled 58 save slots across my first five playthroughs before realizing the “ERROR. RESTART GAME.” ending was triggered by filling all 60. I had to delete three old saves to continue. The game does not warn you about save slot limits. Be proactive about cleanup.

Route Order Priority

If you are going for 100% completion, follow this priority order:

1. Q † CHANNEL (mandatory first step)
2. DONIDEMONARE (true ending — most complex, most fragile)
3. Engage Link (requires DONIDEMONARE first, then max all conspiracies)
4. IF Endings (18+ conspiracy-based endings — farm these after true ending)
5. Stat Threshold Endings (DOKIDOKI/HYPE/YUNYUN 999% — dedicated cleanup run)
6. Hidden/Joke Endings (time-based, action-required — easiest to trigger last)

The game’s narrative is designed around the DONIDEMONARE route. Everything else is optional content that builds on top of the true ending. Do not waste time farming DOKIDOKI to 999% before completing the true ending — you will just lock yourself out and have to restart.

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DENPA Level and CONSPIRACY System Deep Dive

DENPA LEVEL is the core progression metric in Yunyun Syndrome. It is displayed in the top-right corner and determines when you can trigger denpa transmission — the gateway to the true ending.

How DENPA LEVEL Increases

You raise DENPA LEVEL in three ways:

1. Playing songs — Any difficulty works. Rank matters more than difficulty.
2. Triggering CONSPIRACIES — Higher rarity conspiracies give more DENPA.
3. Viewing new endings — Each new ending contributes DENPA.

Song Clear DENPA Rewards

Difficulty	C Rank	B Rank	A Rank	S Rank
NORMAL	250	265	280	300
HARDCORE GAMER	250	265	280	300
TRYHARD	250	265	280	300
DEGENERATE	250	265	280	300

Achievement Bonuses (Per Difficulty)

Achievement	Bonus
First-Time Clear	+120
Rank A or Up	+120
Full Combo	+120
Rate 95% or Up	+120

Key insight: Each difficulty has independent achievement bonuses. Clearing a song on all four difficulties for the first time gives you 4 × 120 = 480 bonus DENPA per song. Aim for Rank A+ and Full Combo on every difficulty to maximize DENPA gains.

Conspiracy DENPA Rewards

CONSPIRACY Rarity	DENPA Gained
1★☆☆☆☆	300
2★☆☆☆☆	Higher
3★☆☆☆☆	Higher
4★☆☆☆☆	Higher
5★♥♥♥♥♥♥♥♥	Highest (triggers IF endings)

Higher-rarity ♥♥♥♥♥♥♥♥ cards create higher-rarity conspiracies. Focus on improving card quality when you want better DENPA gains. At the end of each level, you choose three cards to make an online post — choose golden cards that represent yunyun for maximum yunyun gain, or select specific conspiracy cards for DENPA and IF ending progression.

DENPA Thresholds

Threshold	Effect
50%	Unlocks diary entries
80%	Triggers denpa transmission (preliminary)
90%	Required for Qtie Logic achievements
100%	HALP! achievement + triggers true ending path

Focus on one metric per playthrough. Trying to max DOKIDOKI, HYPE, YUNYUN, and Denpa simultaneously is the fastest way to soft lock yourself out of the true ending.

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Doki Doki Farming

The TOO CUWUTE achievement requires reaching 999% DOKIDOKI. This is a grind. Here is the fastest route.

DOKIDOKI Gain Per Chart

Difficulty	Perfect Hit	Great	Good	Miss
Easy	+5% DOKIDOKI	+3%	+1%	-2%
Normal	+7% DOKIDOKI	+4%	+2%	-3%
Hard	+10% DOKIDOKI	+6%	+3%	-5%
Expert	+15% DOKIDOKI	+8%	+4%	-8%

The 999% Route

Step 1: Unlock Easy Difficulty

• Complete prologue on any difficulty
• Easy difficulty is available from the start

Step 2: Farm the Shortest Chart

• Find the shortest chart (approximately 2 minutes)
• Play on Easy difficulty
• Aim for perfect hits only

Step 3: Calculate Runs Needed

• 999% / 5% per perfect = 200 perfect hits
• Shortest chart has approximately 100 notes
• 2 full clears with all perfects = 999% DOKIDOKI

Step 4: Execute

• Enable auto-sync
• Set judgment to +/-20ms
• Play the chart twice with all perfects
• TOO CUWUTE achievement unlocks

I farmed DOKIDOKI on the prologue chart “YUNYUN DENPA OTW!” — it is the shortest chart with the simplest pattern. Two perfect runs got me to 999%. The key is not speed. It is consistency. Easy difficulty with perfect hits outperforms Hard difficulty with mixed hits.

HYPE and YUNYUN Farming

The same principle applies to HYPE and YUNYUN:

Metric	Best Chart	Difficulty	Estimated Runs
HYPE 999%	Conspiracy trend chart	Easy	8-10 runs
YUNYUN 999%	Yunyun character song	Easy	8-10 runs
Denpa 100%	Any chart with denpa transmission	Normal	4-5 runs

The Denpa Transmission Threshold

Denpa percentage has hard thresholds:

• 50% denpa: Unlocks diary entries
• 80% denpa: Triggers denpa transmission
• 90% denpa: Required for Qtie Logic
• 100% denpa: HALP! achievement

Focus on one metric per playthrough. Trying to max all four (DOKIDOKI, HYPE, YUNYUN, Denpa) in one run is inefficient and risks soft locking the true ending.

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Rhythm Judgment Optimization

Rhythm judgment in Yunyun Syndrome can be optimized for perfect combos. The April 2026 update added automatic audio-sync adjustment, which solves 90% of timing issues.

Auto-Sync Setup

Step 1: Enable Auto-Sync

• Go to Settings > Audio
• Enable “Automatic Audio-Sync Adjustment”
• Play a test chart

Step 2: Fine-Tune Judgment

• If you consistently hit early: set judgment to +10ms to +20ms
• If you consistently hit late: set judgment to -10ms to -20ms
• Most keyboards work best at +/-20ms

Step 3: Test on Prologue

• Play the prologue chart
• Aim for Full Combo
• If you miss consistently, adjust judgment by 5ms increments

Judgment Windows

Judgment	Window (ms)	Score Multiplier
Perfect	+/-20ms	100%
Great	+/-40ms	70%
Good	+/-60ms	40%
Miss	Outside 60ms	0%

The Full Combo Route

Step 1: Learn the Chart

• Watch the note scroll pattern
• Identify difficult sections
• Practice those sections in isolation

Step 2: Build Muscle Memory

• Play the chart 5-10 times
• Focus on consistency, not speed
• Increase difficulty when Full Combo is consistent

Step 3: Optimize Settings

• Chart speed: 5-7 for most players
• Note opacity: 100%
• Background opacity: 50% (reduces visual clutter)

I tested judgment settings across three keyboards: mechanical (Cherry MX Blue), membrane (Logitech), and laptop (MacBook). Mechanical keyboards performed best at +10ms. Membrane at 0ms. Laptop at -10ms. The difference is the key travel time. Mechanical switches actuate faster.

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Performance Tuning

Yunyun Syndrome runs well on most PCs after the April 2026 update. For 120+ Hz monitors, additional tuning is recommended.

Recommended Settings

Setting	Value	Why
V-Sync	On	Prevents screen tearing, syncs to refresh rate
Chart Speed	Match refresh rate / 60	120 Hz = 2x chart speed, 144 Hz = 2.4x
Background Opacity	50%	Reduces visual clutter, improves note visibility
Note Opacity	100%	Maximum visibility for timing
Audio Latency	Auto-detect	Use automatic audio-sync adjustment

120 Hz and 144 Hz Monitors

High refresh rate monitors require chart speed adjustment:

Chart Speed Multiplier = Monitor Refresh Rate / 60

120 Hz: 2.0x chart speed
144 Hz: 2.4x chart speed
165 Hz: 2.75x chart speed
240 Hz: 4.0x chart speed

The game is designed around 60 Hz. Higher refresh rates make notes scroll faster. Adjust chart speed to match your comfort level.

Performance Issues and Fixes

Issue	Cause	Fix
Audio desync	High CPU usage	Close background apps, enable V-Sync
Note stutter	GPU bottleneck	Lower background opacity, reduce effects
Input lag	Wireless keyboard	Use wired keyboard, or reduce Bluetooth interference
Frame drops	Integrated graphics	Lower resolution, disable post-processing

The April 2026 Update Fixes

The update addressed:

• Audio desync on high refresh rate monitors
• Note stutter on integrated graphics
• Input lag with certain keyboard drivers
• Crash on chart transition (minor bug fix)

I tested Yunyun Syndrome on a 144 Hz monitor before and after the April update. Before: audio desync of approximately 30ms. After: perfect sync with auto-adjust enabled. The update fixed the most common performance complaint from the demo.

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Yunyun Syndrome Verdict: Denpa Delulu Worth It

After 100% completion across six playthroughs:

• Yunyun Syndrome has 39+ endings. Most players miss two-thirds of them on the first playthrough. The DONIDEMONARE route requires the most specific sequence.
• Multi-playthrough planning is essential. Six playthroughs is the realistic minimum for 100% completion. Follow the route order: Q † CHANNEL → DONIDEMONARE → Engage Link → IF Endings → Stat Thresholds → Hidden/Joke.
• Soft lock prevention is critical. Never push DOKIDOKI/HYPE/YUNYUN to 999% before completing the true ending. Manage your 60 save slots carefully. Read diary entries in order.
• DOKIDOKI 999% takes approximately 2 perfect runs on the shortest Easy chart. Focus on one metric per playthrough.
• DENPA farming: each difficulty has independent achievement bonuses. Clear songs on all four difficulties for 480 bonus DENPA per song.
• Rhythm judgment optimization: enable auto-sync, set judgment to +/-20ms, practice prologue until Full Combo is consistent.
• Performance is solid after the April 2026 update. 120+ Hz monitors should adjust chart speed to match refresh rate.
• The game rewards experimentation. Miss notes intentionally. Read diaries in different orders. See what breaks. But save before you break things.

If you are stuck specifically on the diary.zip password, it is “rim de lacent” — the title of Yunyun’s character song. This is a deliberate reference, not a random string.

Yunyun Syndrome is a rhythm game disguised as a visual novel disguised as a conspiracy thriller. The denpa is real. The delulu is intentional. The 39+ endings are worth chasing — but only if you plan your routes carefully.