We can drag and drop a Prefab reference from the Projects window into the Enemy Prefab field, or, if we felt so inclined, even a reference to another GameObject that is present in the Scene. Although, given that it’s being used like a Prefab in the code, it would be unwise to do this, since we would be cloning a GameObject that might have already undergone changes in the Scene. Prefabs serve the purpose of a blueprint from which to instantiate new GameObjects and should be used as such.