After several years, Mappy is getting a new job. Little does he know that his new boss is his worst enemy...

Goro has established a new policy that all employees must hit the company gym to stay fit. And by all employees, he means Mappy.

Nyamco has been infiltrated by a corporate spy, and Goro needs Mappy's help. Coincidentally, Goro has also gotten a new assistant around the same time of the reports of a spy...

Mappy has been overloaded with work, so Dig Dug decides to take him to a Wonder Momo concert. However, things don't go as planned.

The Nyamco office has become cluttered with trash and the Prince of All Cosmos (the janitor) is out sick on Spring Cleaning Day. Without him to roll his katamari around to pick up the trash, Mappy and Dig Dug will have to take his place.

An important safe has disappeared under Mappy's watch, so Goro has hired some cops from Time Crisis to solve the crime.

The Nyamco office is under attack by the Ninja Assault Clan! How will Mappy and Goro protect the safety of this company?

Dr. Indie Borgnine has come to Nyamco to find a treasure that been reported to be beneath the Nyamco office. Goro has allowed him to have full access to the building, but Mappy doesn't approve.

The Ninja Assault Clan has put a curse on the Nyamco office building, and now 1,000 angry spirits are floating about causing mayhem. Unfortunately, this is too much for Mappy to handle on his own.

A major heist has occurred where major art pieces have been stolen from museums around the city, and Mappy is certain that Goro is behind it.

Mappy, Dig Dug, and Bravoman go on a stake-out to find evidence that Goro was behind the major heist.

Goro has been arrested by Mappy for committing the heist. Now Goro must go to trial to see if he's innocent or guilty.

Goro has been put behind bars and Mappy's honor is finally restored...or is it?