Baldi's Basics Wiki
Baldi's Basics Wiki

No being in school after-hours in the halls!
— Principal of the Thing

Stealthy Challenge is one of the challenges in Baldi's Basics Plus.


In this challenge, there are 6 Principal of the Thing clones wandering around the Super Schoolhouse, and Baldi will stay in the Principal's office. At the beginning, the player will have their inventory full of Dirty Chalk Erasers. All items in the school are filled with Dirty Chalk Erasers and Energy Flavored Zesty Bars.

The player needs to check their map, hide in the blue lockers and use Dirty Chalk Erasers to avoid being seen by any of Principal of the Things. If any of them see the player, they will begin chasing after them immediately as they are sneaking into Super Schoolhouse after-hours.

Unlike in other modes, once the Principal clones scold the player, they will never lose the player and will always try to find the shortest path to them. These clones are able to find the player hiding inside the dust cloud by using the Dirty Chalk Eraser. While hiding in the blue locker, they will keep moving around near the locker and if the player gets out of the locker, they will immediately get detention.

Baldi is not a threat unless the player is sent to detention because he will always be waiting for them in the Principal's office and since there is no door to this location, there is no way to escape.

In the map screen, Principal of the Things are marked as gray arrows (Icon Principal.png).


Classrooms Faculty rooms Principal's office Total
7 10 1 18
Dirty Chalk Eraser Energy Flavored Zesty Bar Total
19 (including inventory) 5 24



Faculty Rooms


Stealthy Challenge Map.png


Baldi's Basics Plus
  • Prior to V0.3.3, the acronym was C1. The previous acronym is now used on the Speedy Challenge. Plus, there was a door to the Principal's office, but it cannot be opened. This door was replaced to a window in V0.3.3.
    • In this version, a chalkboard in a classroom and a poster in another were removed for unknown reasons.
Baldi's Basics - Challenges Demo
  • The Stealthy Challenge's environment control in Challenges Demo.

    According to the files, the number 99 is mentioned in the environment control.


  • In Baldi's Basics - Challenges Demo, one of the windows of a faculty room had an untextured (white) mask.
    • Upon the first version of Baldi's Basics Plus, the untextured mask was clear.
    • In V0.1.5 to V0.3.2 of Baldi's Basics Plus, the clear mask had a gray color.
    • This glitch was fixed in V0.3.3 of Baldi's Basics Plus by implementing a new system.
Baldi's Basics Plus
  • Stealthy Challenge arrow glitch V0.1.5.png
    In V0.1.5, all Principal arrows on the map were pointing up regardless of the direction of these characters moving.
  • Rarely, Principal of the Things' arrows do not appear in the map.
  • In V0.3.3, Principals could scold the player for running in the Principal's office.
  • Stealthy Challenge blocked faculty room V0.3.3.png
    Since V0.3.3, the entrance of one of the faculty rooms has been blocked by a wall, so it cannot be accessed. However, the door can still be interacted with through the wall. It is possible to hack the game to use a portal poster to get inside or by noclipping inside.