Secret of the Plexus

Secret of the Plexus is an area in B3313.

Description
The area is a linear obstacle course with several unique moving platforms the player must traverse over.

Origins
The area resembles the bonus stages seen in Super Mario Sunshine, albeit with a more primitive appearance.

Leading here

 * Nebula Lobby: Enter the hole in the wall opposite of the Tick Tock Clock entrance.

Two-way

 * Bowser's Floor: Collecting the star will send you to a dark version of Bowser's Floor.