The song "SOFT LANDING ON THE BODY" features a section in which the BPM doubles from 159 to 318 for seemingly no reason. According to composer Kiyotaka Sugimoto, this was due to an engine bug created by the song going to a 7/8 time signature, and the glitch was kept in when the game released. In honor of this mistake, any sudden large BPM changes or gimmicks have earned the nickname "Soflan" by BEMANI fans (a portmanteau of "Soft" and "Landing"). The "Soflan" moniker became canon to the series when beatmaniaIIDX 27 Heroic Verse included it as part of its Notes Radar parameters, signifying the quantity of BPM changes and their severity.