Titanosaurus is an aquatic kaiju from Toho's Godzilla series, first appearing in Terror of Mechagodzilla in 1975 as a sea-dwelling dinosaur-like creature. Its distinctive roar has been reused by fans in edits, memes and soundboards, where short monster cries are easy to drop into videos without needing a full film clip. Because the roar is immediately recognisable as a giant creature sound, it still works for modern kaiju edits, reaction videos and dramatic reveals long after its original film.