 The villain Mota reuses the Purple Monster costume from that serial.The flying disc aircraft from Republic's "King of the Mounties" is reused for this serial (note that the Japanese rising sun logo is still visible).In some shots this flying wing footage is from Republic's "Spy Smasher" serial (used in chapter three of "Disc Man"), where the tail fin is missing (the flying wing was built for "Spy Smasher", and the tail-fin with rising sun insignia was added for Republic's "King of the Mounties" serial).