The 4 songs are Contract by 朱雀 (Suzaku), Ganymede by 玄武 (Genbu), waxing and wanding by 青龍 (Seiryuu), and 華蝶風雪 (Kachoufuusetsu) by 白虎 (Byakko). The One More Extra Stage for Distorted is 嘆きの樹 (Nageki no Ki) by 金獅子 (Kinjishi). The OMES is accessed by A'ing all the other songs on Another with Hard Mode enabled. To access it, one must get a B or higher on the first stage, and get another B or higher on the second stage (with the second song being of equal or higher difficulty than the first). On the last stage, the player must either full combo a 5 or 6-leveled song, finish a level 7 song with a full Groove Gauge, or pass any song with an 8 or higher. The system is not used on machines in "beat#2" mode (which unlocks all songs). All of the Cardinal Gate song feature different frames for the gameplay interface. When a Cardinal Gate song was beaten, its corresponding frame would be unlocked to use in regular play using Konami's IIDX mobile site. Notable songs from this version include:  The PlayStation 2 version of Distorted was released in Japan on August 30, 2007. It contains all the new songs from Distorted (except one, SAMBA DE JANEIRO), 12 new songs, a selection of revived tracks, a preview song from Gold, and in honor of the 10th anniversary of Beatmania, 6 songs from the original 5-key beatmania series. The training mode on Distorted CS also features the Regul-Speed modifier option.