Crayon Shin-chan - episode 40 - 28 Feb, 1993

Shin-chan and his friends go to Nene-chan's house. Nene-chan's mother prepares cake for the kids but Shin-chan ruins it. Misae sends Shin-chan to the swimming school to learn swimming and feels happy to see Shin-chan swim by himself. Shin-chan trains Shiro to be a circus star but Shiro flops at the time of the presentation. Shin-chan gets upset but he tries again. (Source: TVDB)