Piano keys cascade through a Chopin waltz before a four-on-the-floor beat swallows everything whole. O2Jam's Vol.4 digs into the later years of the Korean rhythm game's catalog, and you can hear the production getting more ambitious.
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"Chopin-Grand Waltz" and "Por Una Cabeza" keep the classical-remix tradition alive, but tracks like "Placebo Dying" and "Dark Nightmare" push into harder, moodier territory that the early volumes barely touched. "Identity Pt.
5" picks up a long-running series thread, "Amadeus (Reborn)" reworks an earlier fan favorite, and "HELIX" just goes full aggressive synth. The variety remains the whole point. If you burned through the first three volumes and still want more of that genre-blending Korean rhythm game energy, Vol.
4 proves the well never really ran dry.