Anguirus debuted in Godzilla Raids Again in 1955 as the second kaiju in Toho's Godzilla series, an ankylosaurus-like monster covered in spikes who first fought Godzilla in Osaka. He later returned in several Showa era films and became known as one of Godzilla's most loyal allies, appearing in Destroy All Monsters and Godzilla vs. Gigan. His distinctive raspy roar helped set the sound language for Toho monsters, and clips of it still circulate in kaiju edits, fan films and soundboards.