The Red Cat Shin Tetsuwan Atom : Season 1 Episode 8

Thirteen Thirteenth Street is a spooky old haunted house that is the setting for Astro Boy's exciting adventure. Dr. Leopold and his cat are the only ones who live there. When five boys disappear there, Daddy Walrus and Astro go to find them. They're all right, but as soon as they are freed, all the animals start running wild. Are they rebelling for being kept in cages?