Art direction was headed by Yukihiro Matsuo, while character designs were provided by Mutsumi Sasaki. The scenario in the game was split between six people. Kotaro Uchikoshi worked on Ayaka's and Yue's story; Chabō Higurashi worked on Shion's story; Riichirō Abe worked on Miyako's story; Nobuhito Takabayashi worked on Kaoru's story; Tomohiro Sasaki worked on Minamo's story; and TAS who contributed to Ayaka's story. Music from the game was composed entirely by Takeshi Abo. The original PlayStation and PC versions of Memories Off have one piece of theme music. The ending theme "This May Be the Last Time we can Meet" was performed by Maria Yamamoto, composed by Hidehiko Katō, written by Kaoru Akizuki, and arranged by Sunflower. Two more pieces of theme music were used in the Dreamcast version and the subsequent releases, one opening theme and one ending theme. The opening theme is and was performed by Maria Yamamoto; the final ending theme was , and was performed by Kaori. Both songs were first introduced in the OVA series, and were composed, and written by Chiyomaru Shikura. A new opening theme was introduced in the PlayStation Portable version, in addition to the original opening theme. The opening theme, titled and performed and written by Ayane, is shared by the PSP version of Memories Off 2nd as the game's opening theme. Memories Off was first released to the public on September 30, 1999 for the PlayStation. It was later released for the PC on March 16, 2000, and was later accompanied by a prequel titled Memories Off: Pure released for the Neo Geo Pocket Color, on April 27, 2000. An enhanced re-release for the Dreamcast, titled Memories Off Complete was released on June 20, 2000, with the scenario found in Pure. A second PlayStation release published by Success was released on July 19, 2000, at a cheaper price than the original. Memories Off was later released in China on December 20, 2001, for the PC. A PlayStation 2 version was subsequently released in South Korea by Mdream on December 12, 2002, followed by a Hong Kong and Taiwanese release on March 6, 2003, published by T-Time Technology. The PlayStation 2 game was later released in Japan with Memories Off 2nd as Memories Off Duet on March 27, 2003, and contained additional scenarios. It was followed by another Hong Kong and Taiwanese release, on July 2, 2003, for the PC