"Its rocket-based ramming attacks are intense. Doesn't seem to be that interested in outer space."
Battle Memory

The Rhinocerocket is a powerful enemy in Mother 3, found on the Highway. Its name, like its appearance, is a portmanteau of rhinoceros and rocket.

Its battle sound is Battle Sound 48 which falls under Code Numbers 903 for regular attack, 904 for Smaaaash! and 905 for Miss.