Hey, the secret center isn't the secret center, it's the Slendytubbies 2D Training Maze map. If you consider that Training Maze, okay, but this, man, what?
One extra Newborn was added to the Secret Lair map, but the Newborn's speed was nerfed from 1.5 to 1.2, and its player detection time was nerfed from 5 to 3, and the player's field of view was buffed on the Secret Lair map: 1.5 > 1.2 (the closer to zero, the more field of view the player has)