Hirudegarn or Hildegarn (ヒルデガーン, Hirudegān) is the enormous monster and main villain in the Dragon Ball Z movie, Wrath of the Dragon. He is a simple beast that wrecks and kills everything in his way. Despite his appearance at a point in the timeline that could have made him canon to the original TV series, Hirudegarn was not created by Akira Toriyama. Hirudegarn's name comes from the Co-Producer, Seichi Hirude, who didn't like the original design of Hirudegarn, demanded that they redesign the character, and when he saw the new design, his jaw dropped. The sound effect for a jaw dropping in Japan is "Gaan" (ガーン), so they named the character Hirudegaan.