Tantei Jinguuji Saburou - Shinjuku Chuuou Kouen Satsujin Jiken is another entry in the Jinguuji Saburou detective series. This game likely focuses on a murder case in Shinjuku Gyoen National Garden. The gameplay would have involved investigation, collecting clues, and interviewing suspects.  Expect the typical point-and-click adventure gameplay common for the NES era, but within the context of a murder mystery set in a recognizable location.  Details on the precise mechanics, story specifics, and puzzle elements are lacking in commonly available English-language information.

Tantei Jinguuji Saburou - Shinjuku Chuuou Kouen Satsujin Jiken (Japan)

Tantei Jinguuji Saburou - Kiken na Futari - Kouhen (Japan) (Virtual Console)