No・Ri・Ko is essentially a multimedia title resembling an interactive movie with visual novel elements, containing music clips and digitized snapshots of real actors, most notably the Japanese pop singer Noriko Ogawa, who was fifteen years old at the time of the game's release. The player controls a fan who gets to meet Noriko and subsequently takes her on a date.
The gameplay mostly involves occasionally choosing actions when prompted; most of these are reduced to right and wrong choices, the latter sometimes leading to a Game Over. In certain cases the player can also decide a location to visit with Noriko; other locations may become inaccessible following the player's choice. Sometimes the player participates in simple mini-games, e.g. taking Noriko's photos or playing rock-paper-scissors with her.