Cytus - Black Lair


BGA】 Black Lair 【BMS】

Difficulty Changelog

Version Easy Hard
4.0 6 9

Note Statistics

  • Click notes
    425 on Easy (81.89%), 716 on Hard (89.84%)
  • Hold notes
    13 on Easy (2.50%), 18 on Hard (2.26%)
  • Drag notes
    81 on Easy (15.61%), 63 on Hard (7.90%)


A scene in the Black Lair BMS, showing a girl fighting a dragon. At the end of the music, the video showed that the girl won the battle.

  • The song's preview was used in the 4.0 trailer.
  • This song can also be found in CHUNITHM AMAZON.
  • According to sakuzyo and void, the song's genre is Act / Wars.
  • This is sakuzyo's first song in Cytus.
  • Although not mentioned in the cover, void (a BMS composer) also had a hand in composing this song.
    • This song was used at BOF2012 by a team called "234 trident (Inclusive of sakuzyo, void and xi)

Helpful Info

What do you expect? Sakuzyo, choir and loads more is epicness! Importantly, two parts of this song are harder the part with continued double-notes and the guitar part the comes after it.
— CookiesNWaffles
Quite tricky. It throws in notes that represent both the beat and rock guitar, which puts you in the ultimate test of reflexes. You'll have to go at sprinting speed in the double notes portion that comes afterward. Spamming won't help you, so rely on your current skills.
— Pit-Stain
This is an EPIC song. I love the guitar!!! Beware of the 8-note group in the beginning and 12-note groups in the middle.
— SerialNo30000324
EPIC songs...and warning..the 12-note groups and later than that can make a good
— Mentholzzz
A epic song, with a fairly hard chart.The middle is the hardest part.
— DropletKloud
Failed to see the "epicness".
— Dr. Breakfast
The middle is... hard. I mean, its the hardest part of Black Lair.
— Kittenu
I just like the guitar part, nothing else.
— Zachary Llanos

Songs List
Cytus I
Main Chapters
Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Chapter 8
Chapter 9
Chapter 10
Side Chapters
Chapter 0
Chapter Symphony
Chapter Knight
Chapter Retro
Chapter Timeline
Chapter Deemo
Chapter L
Chapter N
Chapter Million
Cytus II
Free Characters
The Spark - Resurrection - One Way Love - Happiness Breeze - Zealous Hearts (Rayark Edit) - Keep it up - CODE NAME : GAMMA - Blow my mind - Chrome VOX - Brain Power - Extinguisher - For You the Bellz Toll - Praystation (HiTECH NINJA Remix) - REmorse - Stranger - 小悪魔×3の大脫走!? - Online - Sunday Night Blues - Blow My Mind (tpz Overheat Remix) - Maboroshi - TOKONOMA Spacewalk - UnNOT!CED - 下水鳴動して鼠一匹 - Capybara Kids' Paradise - Walnuts Walkers - Hydra - Liberation - Ramen is God - Re:VeLΔTiØN ~光道ト破壊ノ双白翼~ - Rebirth (Cytus II) - Rei - 響け! - 気楽なCloudy - Dropping Lightspeed - Headrush - LOUDER MACHINE - Alterna Pt.1 -Cosmogony- - 100sec Cat Dreams - Better than your error system - Hard Landing
Crystal PuNK
Bo Bo
Conundrum - Sdorica The Story Unfolds - Hesitant Blade - Pounding Destination - Stewrica -Cross- - Circus Time - BlythE - Glorious Crown - DON'T STOP ROCKIN' - Caliburne ~ Story of the Legendary sword ~ - Oshama Scramble! - 超常マイマイン - Glory day - OBLIVION - Play The Future - We're All Gonna Die - Ask to Wind Live Mix - End of the Moonlight - Hello Pinky - Nightmare - U.A.D - Hop Step Adventure☆ - Silent Voice - Spring - Dynamo - Hello Days - Interstellar Experience - Gigantic Saga - FUSE - Popotnik ~ The Traveller of Ljubljana - Ascension to Heaven - Lifill - そんなに私を期待させないで - Fading Star - Magical Toy Box - Until the Blue Moon Rises - Dead V-Code (Special Edit) - Sweet conflict - Centimeter Johnny - Obey - Medusa - Lights of Muse - Stargazer - Blackest Luxury Car - 粉骨砕身カジノゥ - 時計の部屋と精神世界 - XING - Brave My Heart - XODUS - The 89's Momentum - The 90's Decision - Tsukiyura - Like Asian Spirit - 双龍飛閃-Dual Dragoon- - Final Step! - FUJIN Rumble - BREAK FREE - DON'T LISTEN TO THIS WHILE DRIVING - RESET MAN - PERSONA - OUT OF THE MATRIX - Curiosity killed the cat - REBELLIA
DLC Characters
Kizuna AI

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