Code Lyoko

Laughing Fit (1x15)

Air date: Dec 10, 2003

In class, Susan teaches the class about nitrous oxide, more commonly known as laughing gas, and its effects. It can be dangerous if not neutralized by water quickly. During a school production of Romeo and Juliet, X.A.N.A. possesses the laughing gas in the science room and uses it to attack the gang so they would laugh themselves to death.