Fretladder

The 56 hardest Clone Hero custom charts on Expert bass

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Ranked by fretwork’s difficulty D on the Expert bass chart, one entry per song at its hardest part, from the custom charts on the site. The tier is Calc Tier, D on a log scale; the percentile is where the chart sits among every Expert bass chart on the site.

A difficulty list computed from the chart files, not a poll: fretwork reads every note of every chart and scores how busy it is, how much the hands move and how unevenly the work is spread, so two charts of the same song in different games get different numbers, and a custom chart is measured on the same scale as an official one. The pictures are the charts’ own graphs, difficulty over time.

Difficulty graph of Trill Duet by Colorics: notes per second, fret changes per second and their sum over time1. Trill Duet Colorics, D 57.02Difficulty graph of 2k9 battle jam by meganeko: notes per second, fret changes per second and their sum over time2. 2k9 battle jam meganeko, D 21.34Difficulty graph of ur 2 slow !!!!!!!! by Moose: notes per second, fret changes per second and their sum over time3. ur 2 slow !!!!!!!! Moose, D 20.41

#SongArtistSourcePartDifficulty (D)Calc Tier
1Trill DuetColoricspracticeBass57.02100%12
22k9 battle jammeganekoBITCRUSHER: The Lost ChartsBass21.3499%7
3ur 2 slow !!!!!!!!MooseBITCRUSHER: The Lost ChartsBass20.4199%6
4A New WorldInstant RealityBITCRUSHERBass18.6199%6
5IllusionDarkman007BITCRUSHER: The Lost ChartsBass17.4299%6
6Another LifeDarkman007BITCRUSHER: The Lost ChartsBass17.1599%5
7Journey to Silius MedleyNaoki KodakaCSC Quarterly Pack - 2nd Quarter 2026Bass16.6498%5
8ACTION CLASSICAL INC.MECHAMOZARTBITCRUSHER: The Lost ChartsBass16.0598%5
9Waterlily JunctionkandyfanBITCRUSHER: The Lost ChartsBass15.9498%5
10Blitz Lunar Zone 1ArchitekulortBITCRUSHER: The Lost ChartsBass15.5698%5
11Death BloomsMudvayneCHARTS 2 DLC 3Bass15.3797%5
12Gizaba Kaibunsho (feat. Otomachi Una)cosMo@bousou-PCSC Quarterly Pack - 4th Quarter 2025Bass15.1897%5
13Super Chipy TitoYozfitzBITCRUSHERBass14.8797%5
14Suppressed FeelingsH-Mister & nu11BITCRUSHER: The Lost ChartsBass14.7997%5
15Flower Man (feat. Camellia)Toby FoxCSC Quarterly Pack - 2nd Quarter 2026Bass14.7597%5
16Blood and TeethEnterprise EarthCSC Quarterly Pack - 4th Quarter 2025Bass14.3396%4
17Synergy (feat. Paul Wardingham, Tony Dickinson & Shnabubula)Danimal CannonBITCRUSHER: The Lost ChartsBass14.1896%4
18Marmalade CityTQ-JamBITCRUSHER: The Lost ChartsBass13.2993%4
19Two TowersFit For An AutopsyCSC Quarterly Pack - 1st Quarter 2026Bass13.0893%4
2030 Under 13Better LoversCSC Quarterly Pack - 1st Quarter 2026Bass13.0492%4
21Drowning in a Burning WorldBetter LoversCSC Quarterly Pack - 4th Quarter 2025Bass12.9992%4
22€666I Killed the Prom QueenCSC Quarterly Pack - 1st Quarter 2026Bass12.7191%4
23Extradimensional Cosmic Phenomenon (feat. tug)TAKIOCSC Quarterly Pack - 2nd Quarter 2026Bass12.6791%4
24Muri Muri EvolutionNanaoAkariCSC Quarterly Pack - 4th Quarter 2025Bass12.5291%4
25I Won't Let You GoConverge & Shattered VoidCSC Quarterly Pack - 2nd Quarter 2026Bass12.1789%4
26JO-DEKIPOLKADOT STINGRAYCSC Quarterly Pack - 4th Quarter 2025Bass11.9888%3
27Irodori CanvasSugar RushCSC Quarterly Pack - 2nd Quarter 2026Bass11.8387%3
28Mini-Game 2Tim FollinCSC Quarterly Pack - 2nd Quarter 2026Bass11.4985%3
29The MartyrSenses FailCSC Quarterly Pack - 2nd Quarter 2026Bass11.3985%3
30RideauPOLKADOT STINGRAYCSC Quarterly Pack - 4th Quarter 2025Bass11.3685%3
31Not Ready to DieAvenged SevenfoldCSC Quarterly Pack - 2nd Quarter 2026Bass11.2884%3
328.32 (feat. flower)*LunaCSC Quarterly Pack - 1st Quarter 2026Bass11.1083%3
33Disco Necropolis (Graveyard Stage)+TEKCSC Quarterly Pack - 2nd Quarter 2026Bass10.5277%3
34No.0Night VersesCSC Quarterly Pack - 1st Quarter 2026Bass10.3976%3
3599.974°CtricotCSC Quarterly Pack - 1st Quarter 2026Bass10.2674%3
36Super Mario Bros. (Full OST)Koji KondoCSC Quarterly Pack - 2nd Quarter 2026Bass10.1573%2
37Meshuggah ZoneSneedlehogBITCRUSHER: The Lost ChartsBass10.0672%2
38MartianYorushikaCSC Quarterly Pack - 4th Quarter 2025Bass9.8669%2
39If You Got It At Five, You Got It At FiftyNorma JeanCSC Quarterly Pack - 1st Quarter 2026Bass9.0857%2
40Fondue los MuertosPatryk ScelinaCSC Quarterly Pack - 2nd Quarter 2026Bass8.1540%1
41Numbers (I Can Only Count to Four)PsychostickCSC Quarterly Pack - 1st Quarter 2026Bass8.0939%1
42Oh NoWilder.CSC Quarterly Pack - 4th Quarter 2025Bass7.8535%1
43Static (feat. Hatsune Miku)FLAVOR FOLEYCSC Quarterly Pack - 4th Quarter 2025Bass7.8235%1
44UndergroundKoji KondoCSC Quarterly Pack - 2nd Quarter 2026Bass7.7433%1
45Shiny RailsRainBITCRUSHER: The Lost ChartsBass7.5629%1
46Paparazzi (triple j Like A Version)ThornhillCSC Quarterly Pack - 4th Quarter 2025Bass7.5529%1
47closer underchartFc Closer Coil BabypracticeBass6.9119%0
48Ground ThemeKoji KondoCSC Quarterly Pack - 2nd Quarter 2026Bass6.8318%0
49UnderwaterKoji KondoCSC Quarterly Pack - 2nd Quarter 2026Bass6.4112%0
50MeatgrinderSluggerfly & Despised IconCSC Quarterly Pack - 2nd Quarter 2026Bass6.3211%0
51Jingle MedleyKoji KondoCSC Quarterly Pack - 2nd Quarter 2026Bass6.069%0
52TALKIN' 2 UR GHOSTBilmuriCSC Quarterly Pack - 1st Quarter 2026Bass5.626%0
53Starman ThemeKonji KondoCSC Quarterly Pack - 2nd Quarter 2026Bass4.401%0
54Saved the PrincessKoji KondoCSC Quarterly Pack - 2nd Quarter 2026Bass3.481%0
55Duck ReleaseHirokazu TanakaBITCRUSHERBass2.400%0
56CastleKoji KondoCSC Quarterly Pack - 2nd Quarter 2026Bass2.080%0

Every source on the site: the games, their DLC and the custom packs

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