Episode of Hey Arnold!
April Fool's Day
Season 5, Episode 98
Air date: April 1, 2002
IMDb • TV.com Don Del Grande's

Summary

Arnold keeps falling for Helga's April Fools pranks, so he decides to get back at her with a gift box that glares a bright light. Helga's resulting blindness is only temporary, but she has no desire to tell Arnold that.

Trivia

• Arnold says Helga's birthday was last week, meaning that Helga was born roughly around March 24th.
• The YMAA's gym floor can be opened up to get access to the pool. This is a reference to the dance scene in the movie It's a Wonderful Life.
• This was the first episode to feature Alex D. Linz as the voice of Arnold. The other episode where he voiced him was "The Journal".
• This is the only episode not to feature Sam Gifaldi as the voice of Sid. In this episode, he was voiced by Sam's younger brother, Taylor Gifaldi.
• Unlike the episodes "Arnold's Christmas", "Arnold's Valentine", "Arnold's Halloween" and "Veterans Day", this episode actually aired on the day of April Fool's Day.
• Canonically, this episode takes place after the "Hey Arnold!: The Movie", which means Arnold already knows about Helga's feelings.
• Gerald states that Arnold is too "trustworthy, loyal, helpful, friendly, courteous, kind" for April Fool's Day. Those characteristics are 6 of the 12 laws, in order, of Boy Scouts of America's 'Scout Law'.

See also

• Quotes from this episode
• Transcript of this episode