The subject matter of this article contains in-development information that was cut from the final version of an official and/or canonical source and appears in no other canonical source. It may also contain incomplete information since not all cut material is publicly known.
A bat-like creature with six eyes, the Stukabat would have been met in open spaces and attack the player from the air with its claws. It was known to have been encountered during the Half-Life chapters Blast Pit,On A Rail, on Xen, and in one iteration of the cut section Communications Center. According to its animations and early gameplay footage, the Stukabat was able to hang itself on ceilings like a normal bat, walk on the ground after being forced on it aided by its single rear leg and its wings, and would not always attack the player. It would also emit bird of prey-like noises.