Shalom: Knightmare III / シャロム 魔城伝説III 完結編 / Shalom: Majou Densetsu III Kanketsuhen

This game has no staff roll, but in-game there's a Staff Village where members of the development staff appear as characters, and one room contains four people who can all be associated with Konami sound staff (though they don't comment on sound specifically). Two of them, Kazuhiko Uehara and Kinuyo Yamashita, have confirmed elsewhere they had sound roles.