Gasbag

The Gasbag is an alien species, either a native creature from the planet Na Pali or possibly artificially created through bio-engineering by the Skaarj race. Due to the places they appear, though, it is more possible that it is native. It's round in shape, has two arms and several black eyes on the forehead. It floats around and moves through air. It's generally found in locations such as castles and rocky places.

In Unreal Tournament 2003 and Unreal Tournament 2004 Gasbags are one of the enemy species of the Invasion gametype.