Billy Hatcher and the Giant Egg, Gamecube game New Factory Sealed

Action platformer from the makers of Sonic. Players take control of the clucky title character, Billy Hatcher, and try to bring light back to his now darkened home world. To do so, he must free a bunch of elders that are trapped inside golden chicken eggs. The idea is to find these and other eggs and roll them around the sprawling levels, smash enemies and collect fruit until they are ready to hatch, and then crack the suckers open to bring a small, friendly animal into this world. Billy can hatch penguins, seals, and other creatures and command them to help him on his quest.