The room in a video game where the boss and the player exchange blows. Typically features an imposing entrance door, and decor fitting the boss villain's Motifs. The appearance of a boss room will typically have the following characteristics: The boss may be waiting for you in plain sight, or you may have to search before realizing that He Was Right There All Along. Exit is typically not allowed until the Boss Battle is over, after which one may leave the way one came, exit through an alternate door, or be teleported out, through either Phlebotinum or plot device.