Ooh, okay, thanks for answering. Looking forward to seeing if Human has anything else to add, clarify, and/or correct. I have more:
6. Can the entire "game" be only cut scenes like some kind of "movie," "storybook presentation," and/or "visual novel"? (e.g., a "visual novel" made in RPG Maker, except the player doesn't do anything besides pressing the Confirm button to move the writing forward; the player doesn't select anything besides "New Game" or "Start Game" at the title screen.) Just to "tell a story."
7. Also possibly related to #6, but can the entire "game" be one video file the player sees after they choose "New Game"? (After selecting "New Game," the game loads a video file for the "player" to watch.)