LarryBoy in the Amazing Brain-Twister is the seventh chapter book of LarryBoy: The Cartoon Adventures. It was released on December 16, 2003.
The citizens of Bumblyburg are no longer showing compassion. They are committing outrageous crimes, giving in to peer-pressure, and the weather is unusually stormy. Something is definitely amiss in the city of Bumblyburg, but who's behind these evil doings? None other than, the evil genius, Plum Loco. He's created a device called the Brain-Twister, and LarryBoy is out to stop him. When a tornado rages through town the citizens of Bumblyburg wind up on the receiving end of their own teasing. But how will LarryBoy calm this storm and show everyone the importance of being kind?