Peter Potamus, a purple hippo, and his monkey companion So-So travel through time in a balloon. In each adventure, they participate in historic events and Peter uses his "Hippo Hurricane Hol... Read allPeter Potamus, a purple hippo, and his monkey companion So-So travel through time in a balloon. In each adventure, they participate in historic events and Peter uses his "Hippo Hurricane Hollar" to overcome foes.Peter Potamus, a purple hippo, and his monkey companion So-So travel through time in a balloon. In each adventure, they participate in historic events and Peter uses his "Hippo Hurricane Hollar" to overcome foes.