(C64) [Kawamuraya Honpo (Kawamura Yasuhito)] Opanchu Hon Neo-Century Service Pack 1
(C65) [Kawamuraya Honpo (Kawamura Yasuhito)] eroeroo seibo 2
(C63) [Kawamuraya Honpo (Kawamura Yasuhito)] eroeroo seibo
[Kawamuraya Honpo & Medical Company (Kamamura Tsukasa, Kawamura Yasuhito)] SWEET SWEET TEASE
[Pulse Rifle (Io-Takuya) & Medicine Compilation (Yasuhito Kawamura)] M