Crayon Shin-chan Movie 25: Shin-chan Shuurai! Uchuujin Shiriri 6.81
Other Name: 映画クレヨンしんちゃん 襲来!! 宇宙人シリリ
Summary: One night, a UFO crash landed at the Nohara family. Among them was Siriri, an alien who came from space. Hiroshi and Misae, who were exposed to the rays of light emitted by Siriri, rejuvenated 25 years old, Hiroshi returned to 10 years old, and Misae returned to 4 years old. Siriri says that he can rejuvenate creatures, but not grow them. And it seems that Siriri's father in the south of Japan can restore even Hiroshi Nohara to his original form. The next day, Siriri goes into Shinnosuke's pants and the Nohara family sets out on a journey through Japan.