Teacher Baldi

A math teacher nicknamed Baldi, who wears a green shirt and blue pants, often carries a long ruler with him, which he uses to punish students for incorrect answers in their notebooks. He enjoys asking difficult and impossible problems, and is quite a cold person. When he gets angry, he chases after a student, slapping his hand with the ruler.

An 8-year-old girl in a red dress, with a jump rope in her hand, constantly runs around the school looking for a student to play with. As soon as she finds a student, she immediately catches him and makes him jump on the jump rope at least 5 times.

The principal at Baldi's school constantly walks the hallways to punish students who violate rules such as running in the hallways, entering staff-only rooms, or causing trouble. The principal locks the offender in his office for 30 seconds for the first offense, 60 seconds for the second offense, 90 seconds for the third offense, and an additional 30 seconds for subsequent offenses.

A dark green mop that leaves its room every five minutes and starts driving around the school at high speed, shouting, "It's time to clean, clean, clean!" Since it has no eyes, no arms, no mouth, it can accidentally sweep up both students and staff, and after cleaning, it goes back to its cramped room.

A square, homemade robot made of pipes, with artificial hands welded to the frame and an artificial, unnatural head. Inside the frame are wires and a large plush heart. The robot itself, upon noticing a student, begins to accelerate straight toward them, with a robotic voice saying, "Let's hug!" and pressing the student against the wall in a semblance of a hug.