The Most Persistent Guy

The Obstinate Fellas!

To Make the World More Splendid...

The Shoot-to-Kill Order?!

Warriors of Public Safety?!

The Golf Hustlers Strike Again

Good Medicine Tastes Bad?

Assault on Modern "Ancient" Antiques

A Visitor From Above

Back to the Ancient Times

The Founding of Happism

Professional Wrestlers!

Hawaii Paradise!

Hawaii Paradise! - Part 2

Capturing the Store Thief!

Hurry for Convenience!

The Legend of the Golden Fish!

The Legend of the Golden Fish! - Part 2

The Doll Collecting Club

The Master Swordsmith Ryotsu!

Nakagawa Corp. in Tokyo!

Introducing the New Robot Police!

Super Baseball!

Ferrari My True Love!

The Hockey Competition

An Osomatsu-kun Car!?

40th Anniversary Special

The typical Kochikame plot involves Ryo-san coming up with a money-making scheme by inventing a new gadget or capitalizing on a fad, achieving great success, calling on Nakagawa's help as things turn sour, and finally losing it all as the fad runs out of steam or out of control. While the plots are gag-driven, much of the humor comes from the juxtaposition of mundane characters with the bizarrely incongruous (Nakagawa's wealth, Maria's appeal, everyone's lack of actual police work), most of which is never explained or rationalized in the slightest. 
(Source: Wikipedia) 
Notes: 
-Volume 201 got published on October 4, 2021. 
-Included one-shot: Robot Santapei.