You guys can download the open source on Gamebanana if you want to mod this map but make sure you follow the Gamebanana site rules even this is unofficial but it still important to follow the Gamebanana site rules if you decided to mod this map. Credits to the owner also required if you make a mod from this map. Also you need Unity 2020.1.16 to mod this map.

Open source: https://gamebanana.com/gamefiles/13550

Credits:

Paulor94 - Map creator

mystman12 - Creator of Baldi's basic

SplintaDinta - Made this new title screen

TheBaldiModder452 - Made some new posters, textures, sprites, made Frannie and Math child character sprite, made Dave Microbot voiceline, Beepster and DJ Yellow character idea and made Math child voicelines

Olyan2 - Made some dithered texture

Zerra1010Zarra and AnastusTheModder - Made some loading screens and tips

Filename3 - Loading screen inspiration and the owner of some scripts

MariiBound2003 - Owner of the Marii and Gifttany characters and also Gifttany voiceline

MrDrnose - Owner of Laura and Lockpick item sprite

rapparep lol - Minimap, random item ideas

Fancy-graphics - Owner of her OC and her theme song

PlandyTheNatureDevil - Owner of his OC

TEMGamingYT225 - E4404 character idea, Circuit Breaker idea, E4404 Remote idea and also made some new posters

Zun - Owner of the Cirno sprites

BlakeDude7 - Shadow Baldi character idea

NiceGuy123(Bafan) - Made new Laura voiceline

CyndaquilDAC - Made water fountain prefab

Rosedoodles - Owner of her OC

Scott Cawthon - Owner of some sound effects

Nathan Foonugs - Water bucket item, Ethan and Airhorn item idea

ToffeeRecord - Made new Ice screen and Ice sprite and also made some new poster

xTPSx - Made some new poster

Analrap - Made some new poster

montecore - The owner of Rumia model

RAYusamimi - The owner of Remilia model

Subnormal5000 - The owner of Gungnir spear model

ゴマボウ - The owner of Yukari model

BBRMS 3: The Grapple challenge map screenshots