Yuukyuu no Eden – The Eternal Eden was developed by ASCII Corp., Released in 1999 Other Informations: GAME ID: SLPS-01928

Yuugen Kaisha Chikyuu Boueitai – Guard of Earth Organization was developed by Media Rings Corp., Released in 1999 Other Informations: GAME ID: SLPS-02024

Yume no Tsubasa was developed by KID, Released in 2000 Other Informations: [Model SLPS-02954]

Yume Iroiro – Yumemigaoka Gakuen Koutou Gakkou Dai 33-Kisei was developed by Feathered, Released in 1998 Other Informations: GAME ID: SLPS-01401

Yukinko Burning was developed by Princess Soft, Released in 2002 Other Informations: GAME ID: SLPM-87013

Youkai Hana Asobi was developed by Unbalance, Released in 2001 Other Informations: GAME ID: SLPM-86857

Yoshimoto Muchicco Daikessen – Minami no Umi no Gorongo Shima was developed by Sony Computer Ent. Inc., Released in 1999 Other Informations: GAME ID: SLPS-02308

Yamagata Digital Museum was developed by Imagineer Co. Ltd., Released in November 18, 1999 Other Informations: CD1 ID: SLPS-02393 CD2 ID: SLPS-02394 CD3 ID: SLPS-02395 CD4 ID: SLPS-02396 Released on November 18, 1999 in Japan.