J.J. & Jeff

J.J. & Jeff
Also known as: Kato-chan & Ken-chan (JP) Developer: Hudson Soft Publishers: Hudson Soft (JP), NEC (US) Platform: TurboGrafx-16 Released in JP: November 30, 1987 Released in US: 1990 This game has regional differences.

Sort of an Adventure Island-esque platformer.

Regional Differences

The original Japanese version of the game is loosely based off a television show from comedians Cha Kato and Ken Shimura, specifically the long-form sketch segment Detective Story, the most popular part of the show. When the game was eventually released in the US years later, the main characters were understandably changed and most of the game's toilet humor was removed.

Title Screen

Kato-chan & Ken-chan	J.J. & Jeff

The title graphic for the Japanese version changes colors, while the US version remains the same color. The city in the background has been slightly modified too.

Main Characters

Kato-chan & Ken-chan	J.J. & Jeff
Kato-chan	J.J.
Ken-chan	Jeff

Here's the characters you can play as. Ken-chan/Jeff runs faster than Kato-chan/J.J., but has less traction.

Kato-chan & Ken-chan	J.J. & Jeff

The fart attack, performed by simply crouching, was changed to a spray can attack. This means the "gas" was changed from shooting behind your character to in front.

Partner Encounters

Throughout the game, you'll frequently find your partner (the character you didn't choose) either doing something lewd or even impeding your progress by throwing cans at you. Either way, you can give them a swift kick to get them to stop.

Kato-chan & Ken-chan	J.J. & Jeff

You can occasionally find your partner bouncing up and down, urinating on the background. This was changed to him just awkwardly standing there with his back to the camera, bouncing up and down with his hands on his hips.

Kato-chan & Ken-chan	J.J. & Jeff

You can also find your partner taking a dump behind a bush. Their face will turn red, signifying... strenuous activity. This was changed to, oddly enough, you partner just sitting back there wearing an animal mask while wielding their respective spray can.

Hint Rooms

You can also find your partner in certain doors where he'll refill your vitality meter and give you a hint or crack a joke. In these scenes, your partner is dressed in a weird outfit, most of which were changed for the US release. The outfits in Kato-chan and Ken-chan all reference characters played by the comedy duo in various skits.

Kato-chan / J.J.

Kato-chan & Ken-chan	J.J. & Jeff

Ken-chan / Jeff

Kato-chan & Ken-chan	J.J. & Jeff

Ending

After the short ending cinematic, the game begins to show all the enemies in the game. It displays the enemy's name and a short description, both of which were changed for the US release. The Japanese version oddly uses English for the descriptions, despite the rest of the dialogue in the game being in Japanese.

Kato-chan & Ken-chan	J.J. & Jeff

Kato-chan & Ken-chan	J.J. & Jeff

The credits are mostly identical, except for these last two screens. The people credited in the "very special thanks" were changed and a hyphen was added between "good" and "bye".

Kato-chan & Ken-chan	J.J. & Jeff

Finally, the ending screen itself was changed completely, and is far less disturbing.