Waddle Dees are the most common enemies of the Kirby series. They have appeared in almost every game. You can be a Waddle Dee Ball in Canvas Curse and Bandanna Dee in Kirby's Return to Dream Land. He helps you in Kirby 64 and is also the first opponent in Kirby's Avalanche. In the Kirby Super Star games, Parasol Waddle Dee can be a helper.
Waddle Dees are said to help anyone who helps them, which is why they help King Dedede. They are led by Waddle Doo and come in huge numbers. In episode 92, they form a rebellion because they don't have enough food. How do they eat? The food goes straight through their face and into a mouth.