Space Amoeba: Yify

: Offers various versions, including the English Dub and original Japanese versions.

: Originally released in Japan as Gezora, Ganime, Kamoebas: Decisive Battle! Giant Monsters of the South Seas . Space Amoeba YIFY

: Directed by Sadamasa Arikawa; notably the first Toho monster film made after the death of Eiji Tsuburaya. Viewing Options : Offers various versions, including the English Dub

: Released in 2006 with the Japanese language and English subtitles. : Offers various versions

While you mentioned "YIFY"—a group known for high-quality, small-file-size movie torrents—it is important to note that the film's classic status has led to its legal availability through public domain or archival sites like Archive.org.