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J.J. & Jeff

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Title Screen

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


RegionIcon.png 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. 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
Kato-chan & Ken-chan-title.png J.J. & Jeff-title.png

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
Katochan&Kenchan-Katochan.png
Kato-chan
JJ&Jeff-JJ.png
J.J.
Katochan&Kenchan-Kenchan.png
Ken-chan
JJ&Jeff-Jeff.png
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
Katochan&Kenchan-Fart.png JJ&Jeff-Spray.png

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
Katochan&Kenchan-LampPost.png JJ&Jeff-LampPost.png

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
Katochan&Kenchan-KenBush.png
Katochan&Kenchan-KatoBush.png
JJ&Jeff-JeffBush.png
JJ&Jeff-JJBush.png

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.

Kato-chan / J.J.
Kato-chan & Ken-chan J.J. & Jeff
Katochan&Kenchan-KatoHint1.png JJ&Jeff-JJHint1.png
Katochan&Kenchan-KatoHint2.png JJ&Jeff-JJHint2.png
Katochan&Kenchan-KatoHint3.png JJ&Jeff-JJHint3.png
Katochan&Kenchan-KatoHint4.png JJ&Jeff-JJHint4.png
Ken-chan / Jeff
Kato-chan & Ken-chan J.J. & Jeff
Katochan&Kenchan-KenHint1.png JJ&Jeff-JeffHint1.png
Katochan&Kenchan-KenHint2.png JJ&Jeff-JeffHint2.png
Katochan&Kenchan-KenHint3.png JJ&Jeff-JeffHint3.png
Katochan&Kenchan-KenHint4.png JJ&Jeff-JeffHint4.png

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
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JJ&Jeff-Cast01.png
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Kato-chan & Ken-chan J.J. & Jeff
Katochan&Kenchan-VerySpecialThanks.png
Katochan&Kenchan-GoodBye.png
JJ&Jeff-VerySpecialThanks.png
JJ&Jeff-GoodBye.png

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
Katochan&Kenchan-End.png JJ&Jeff-TheEnd.png

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