As you zoom through the special Egg zones, the different eggs you'll collect will not only yield little surprises "to keep things interesting" according to the Cartoon Network devs, but there are two special bubbleheads available to those who are lucky enough to find them. Keep in mind that other players can warp in and out of the Egg Zones, so you'll need to be quick on your toes to pick up the special holiday eggs - and the related bubbleheads! Free-to-play players in Future World will be able to pick up one of the two, and Unlimited access players - at either $5.95 for one account or $9.95 for up to four accounts - will be able to find the Future World helmet and another bonus bubblehead.
If you still can't find out where to look for Coco's helpers, check in on the FusionFall forums for some special riddles that have clues on where to go, or check with the other players in FusionFall and see if you can get a hand. After all, gaming is much more fun if you make some friends along the way!