• This episode is similar to the canon episode "Fools Day Out".
  • This episode reveals Ivan's middle name, Hadwinov.
  • As Timmy shows Ivan his pie in the face routine around the holidays, one of them shows Vicky giving Timmy a present which is a pie. A reference of the early transcript of "Fools Day Out".
  • Chester and A.J.'s voices in the recording footage of Groundhog Day was re-dubbed by Jason Mardsen and Gary LeRoi Gray.


  • SpongeBob SquarePants - Some elements in this episode are similar to the SpongeBob SquarePants episode "Fools in April".
    • When Ivan and the April Fool pull a cruel prank on his girlfriend, Chloe, which caused her to run off crying, Chester and A.J. give a stuffed groundhog as a gift, which then attacks Ivan, with A.J. coldly saying "April Fools, jerk." similar to how Squidward pulled a cruel prank on SpongeBob which caused him to run off crying and one of the Krusty Krab customers to call him out on the prank.
  • The Simpsons - Ivan arrives at school dressed as a doctor saying, "Hi, everybody!". A reference to the catchphrase of Dr. Nick Riviera from The Simpsons.
  • Porky Pig - When Ivan and the others got rid of the April Fool, he flies away stuttering a little and shouts "That's all everyone!", a reference to Looney Tunes Porky Pig during an ending sequence.
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