Hands-On Hall

Hands-On Hall, otherwise known as World 6-3, is the third level in the sixth world of Super Mario 3D World, becoming accessible after beating World 6-2, Spooky Seasick Wreck. Players must acquire 100 Green Stars to unlock the course, and its own completion opens Prince Bully Blockade. This level has orchestrated music combining both Japanese and Chinese features.

Layout
The first area players visit a short indoors corridor. At the end of it there are two shōji doors that reveal a Warp Pipe when tapped on via the Wii U GamePad. They are dropped into a longer, three-story room with a few Goombas, Galoombas and one single Spike. The third story has a gong that makes coins fall from the ceiling when hit.

A Warp Box takes the player to the outside of the temple, where the Checkpoint Flag is, besides Propeller Boxes and enemies such as Thwomps and Goombas. The Goal Pole is on the highest roof. Here, the character can also collect all five Key Coins to open a Warp Box that leads to an optional area with many gongs and Spikes.

Green Stars

 * Green Star 1: Behind two touchable false walls, which in turn are behind doors on the third floor, alongside two Galoombas and piles of coins.
 * Green Star 2: Floating above a gap in the outdoors area, requiring the use of a Propeller Box.
 * Green Star 3: After the Warp Box in the optional room, there is a gong that reveals a Mystery Box. It warps players to a cage with a Spike. Defeating him makes the third Green Star appear.

Stamp

 * In the optional area, players must leave the building through a secret passage in front of the first set of Spikes. Walk towards the camera on the wooden boards. There, players must use a Propeller Box to fly up to the middle roof, where the course's Stamp is.

Enemies

 * Goombas
 * Spikes
 * Galoombas
 * Coin Coffers
 * Thwomps

Trivia

 * This stage's Japanese name is almost certainly a reference to the Japan-only Famicom title Nazo no Murasame-jō.