There is unused data for two versions of a Red Cape boss in the PlayStation Portable version of Shin Megami Tensei: Devil Summoner. In the data, it is located before the similarly-unused Yomi-kugutsu and the PSP superbosses. Its name is spelled あかマント rather than the spelling used in the Raidou Kuzunoha games.
Nomenclature
Red Cape is named after Red Cape, a Japanese urban legend.