Hydromedusa

The Hydromedusa lives below the ices on planet Heilo but can and needs to surface occasionally for oxygen. As it is extremely light it can maneuver and fly above the surface also. It uses its many eyes to see in the deep depths of the Heilo oceans. The humanoid Archos has installed a saddlecockpit and a control device which is attached directly into the
creatures brain to be able to steer it properly. He also installed a Jet Booster to be able to match the speed of the human jetfighters.