The Hydro-Hopper Penguin is a penguin that appears in Missions standing next to the Hydro-Hopper boat. He is a green penguin with a Black Toque and overalls. He appears in a few missions, trying to fix the Hydro-Hopper, then you need to help him. He enjoys his job as well, however it seems like he can't really keep the boat in shape (due to a number of times where he has trouble with the boat). He seems to be very polite and friendly as in one of the missions, he gives you a pump.