The final battle between Godzilla and Mothra's twin caterpillars is a brilliant display of Eiji Tsuburaya's special-effects techniques, including "suitmation" (a stuntman in a monster suit), hand-operated puppetry, miniatures, wire work, pyrotechnics, optical effects, and more. The caterpillars' sticky web was created with a chemical compound that was sprayed with an air compressor.