All of the in-game objects (including non-player characters) in Virtual Theatre occupied space, which was a unique feature for an engine at the time. Consequently, non-player characters had to side-step the player's protagonist and any other object they came across, as well as the player had to side step them. When a non-player character bypassed the protagonist, he or she uttered a comment (like "Excuse me, Sir"). As the result, the engine achieved a more realistic game world than previous engines were able to provide, though non-player characters could unwittingly block a path as the player was traversing the game scene.