Ninja Hattori-kun Plus Perman: Ninja Kaijuu Jippou tai Miracle Tamago

An alien egg falls from the sky and draws Ninja Hattori and his friends into an incident far beyond an ordinary ninja problem. The egg eventually gives rise to a destructive monster, and the danger becomes large enough to bring another group of heroes into the fight.

Perman and his companions join forces with Hattori's group, combining superhero gadgets with ninja techniques against the creature. With Earth in danger, two very different teams must learn to coordinate before the strange visitor's destructive power grows beyond their control.