Flex Fudgehog, also known simply as Flex, is the main antagonist of the Viva Piñata episode "Fudge Match". He steals Fergy's friends due to his good lucks and personality.
Getting tired of Fergy's lazy attics, Fergy's friends soon meet a new, cool Fudgehog named Flex. He is like Fergy, but more athletic. Jealous, Fergy asks Paulie for help to defeat Flex. Noticing the upcoming race, Paulie suggests that Fergy should go against in the race.
When the race starts, Flex gets the upper hand, but Fergy cheats, and puts obstacles in Flex's way. It was a close race, but Fergy managed to beat Flex and get his friends back.