Yooh
Deca Dance (데카 댄스) is a Pump It Up D20 chart. Community-rated difficulty tier: Upper-Mid (17 votes). BPM 160. See its tier ranking, play records, and community votes on ArcadeStat.
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A fun chart that's good for practicing brackets
There are many parts where you can just mash through with 4-note chords, but it's good to practice to improve your bracket skills.
For a D20, the bracket tech is quite advanced, mixing various bracket patterns found in D21-22 charts. Be careful of the hold notes as their tick count is quite significant. The chart is not super tiring physically, but it's mentally a bit taxing, plus the ending does make you move around a bit.
Technical but quite simple