Floor 1.

You step out of the elevator, wandering around the abandoned underground sections of GardenView. As you keep track of the machines you've already made, you begin to hear...a lullaby?

Curiosity gets the best of you, as you get closer to the music. But as you enter a room, you're encountered by Twisted Boxten, having you baited into his music box as he gets up with a sharp grin and begins chasing after you.