Battle For The Neverhood
Fank was immune to Dr. Kogg's spores, but his brother Frank wasn't. Fank has to help save all the mutated chaos. Fank can use his bobble as an explosive missile. He later fights a mutated Frank over in Mud Creek.
Fank continues his quest with his friends, till they got to Dr. Kogg's Forteress. Fank then swims home to the Chao Village with his friends.