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.
DirectorJohn Holmquist
WritersLorraine Gallacher, David Regal, Anthony Bell
Part of
Includes: The Adventures of Ronald McDonald: McTreasure Island, The Wacky Adventures of Ronald McDonald: Scared Silly, The Wacky Adventures of Ronald McDonald: The Legend of Grimace Island, The Wacky Adventures of Ronald McDonald: The Visitors from Outer Space, The Wacky Adventures of Ronald McDonald: Birthday World, The Wacky Adventures of Ronald McDonald: Have Time, Will Travel, The Wacky Adventures of Ronald McDonald: The Monster O' McDonaldland Loch
