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.
Stars: Joe Maggard, Dee Bradley Baker, Christine Cavanaugh, Kevin Michael Richardson, Pamela Adlon, Lisa Raggio
Crew: Lorraine Gallacher (Writer), Mark Mothersbaugh (Music), David Regal (Writer), Robert Mothersbaugh (Music), John Holmquist (Director), Anthony Bell (Animation Director)
Country: United States of America
Language: English
Studio: Klasky-Csupo, McDonald's
Runtime: 40 minutes
Quality: HD
Released: Mar 30, 2001
IMDb: 4.4
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