It’s funny how he comes flying out of nowhere and pounces on Calvin. The action sequences and the artwork are some of the best of the C & H images. Then he turns back to a stuffed animal whenever Calvin’s mom or dad or Susie shows up. It’s sort of like the singing frog in the old Warner Bros. cartoon. The man who finds him is the only one that the frog will sing for. Then he turns back into a regular frog when anyone else gets near him.