

Ronald McDonald gets babyfied by a mad scientist in a 40-minute corporate fever dream.
It's Ronald's birthday and Hamburglar, upset that he didn't get Ronald a present, invites everyone to a fake amusement park known as "Birthday World" to celebrate, run by an evil mad scientist named Professor Thaddeus J. Pinchworm. Everyone is amused at first, but they can no longer escape and no longer fall for the poor designs of the rides until they ride a rollercoaster which turns them into babies (both Franklin and Tika are wearing diapers) and they need to find out how to return to their original ages, even though their certain abilities are limited since they are toddlers.
Practical Effects
The baby transformation sequence haunts my dreams.
Director
John Holmquist
Trivia, insights & behind the scenes
Christine Cavanaugh voiced both Chuckie Finster and Dexter before retiring from acting entirely in 2001 — this was her bizarre swan song.
This was part of a six-film McDonald's VHS promotion where kids got tapes with Happy Meals, making it one of the most widely distributed pieces of corporate propaganda ever animated.
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