super late response, but if you still wanna know, you wanna download baldis basics fullgame demo then put the files inside of it, you can download the demo here: Baldi's Basics Full Game Public Demo.zip - Google Drive
super late response, but if you still wanna know, you wanna download baldis basics fullgame demo then put the files inside of it, you can download the demo here: Baldi's Basics Full Game Public Demo.zip - Google Drive