Say Hello to the Brand-New You! (Boys' Edition)

 is a educational video watched Nurse Powell's class. Greg found the video "disgusting" and said it looked like it was made 30 years ago. However, Rowley left after the two-minute mark when the word "perspiration" and became afraid of seeing older kids cause he would catch puberty from them.

Appearences

 * Diary of a Wimpy Kid: The Ugly Truth (first and only appearences)