Dubbed a "dramatic adventure" game and taking place across multiple episodes, the gameplay segments incorporate tactical role-playing, dating sim and visual novel elements.
Gameplay is divided between adventure segments where Ogami explores Montmartre—the area of Paris surrounding Les Chatte Noir—, and combat sequences governed by a turn-based battle system across a three-dimensional (3D) area allowing full range of movement.
Depending on the type of response, the character may respond positively or negatively, impacting their relationship with Ogami and future interactions.
Other actions within LIPS include holding the cursor over parts of a character's portrait to trigger internal monologues and varying responses from the characters.
Over the past two decades, we have all become fatter.