Yojigen Chōyaku Kikan (四次元跳躍機関, "Four-Dimensional Jump Engine") is a Touhou Project arrange track by composer koutaq, added to maimai as part of the ORANGE PLUS edition on November 12, 2015. The song is an arrangement of Sakuya Izayoi's stage 5 boss theme "Moon Clock ~ Luna Dial" (月時計 〜 ルナ・ダイアル) from Touhou Koumakyou (Embodiment of Scarlet Devil). koutaq reimagines the original with a driving beat at 135 BPM, emphasizing crisp synth leads and a steady four-on-the-floor rhythm that captures both the elegance and the time-bending menace of the maid of the Scarlet Devil Mansion. The title is a transparent reference to Sakuya's signature ability: the power to manipulate time, the fourth dimension, as if leaping through it at will. This theme carries over into the in-game unlock conditions, most notably the title "ザ・ワールド" (The World), a direct nod to DIO's time-stopping Stand from JoJo's Bizarre Adventure, obtainable by clearing the Master chart at speed 1.0 with S rank. The song's Master chart, designed by rioN at level 13 (constant 13.4), is known for dense Tap-heavy patterning with 636 total notes, demanding precise stamina and reading ability. The Expert chart, designed by the alias 某S氏, sits at level 10+ (constant 10.6) and offers a more moderate challenge suitable for experienced players. Both charts have survived multiple rebalancing passes across maimai versions, with the Master chart gradually climbing from its original level 11 in ORANGE+ through several revisions to settle at level 13 from UNiVERSE+ onward.