J.J. & Jeff

n/a

J.J. & Jeff
System(s): PC Engine, TurboGrafx-16, Virtual Console
Publisher: Hudson Soft NEC
Developer: Hudson Soft
Genre: Action
Number of players: 1
Release Date RRP Code JP 1987-11-30 ¥4,9004,900 HC62006 US 1990-03 TGX020014 US ▼ 2007-05-28 EU ▼ 2007-06-15 AU ▼ 2007-08-03
ESRB PEGI

{{#seo:

|og:image=https://necretro.org/images/5/5e/Jj-jeff-title.png
|og:site_name=NEC Retro
|title=J.J. & Jeff
|twitter:card=summary_large_image
|twitter:image:src=https://necretro.org/images/5/5e/Jj-jeff-title.png

}}

---

This short article is in need of work. You can help NEC Retro by adding to it.

---

J.J. & Jeff, known as Kato-chan Ken-chan (カトちゃんケンちゃん) in Japan, is a side-scrolling action game developed by Hudson Soft for the PC Engine and TurboGrafx-16.

In its original form, Kato-chan Ken-chan was based on the Japanese television show Kato-chan Ken-chan Gokigen TV, with hosts Ken Shimura and Cha Kato assuming the role of playable characters. The game was censored for its North American release due of the copyright and the toilet humor.

Gameplay

It is very similar to Adventure Island, but instead to need to get a weapon for attack the enemies, the characters can kick them.

Production credits

• Excecutive Producer: Katsuhiro Nozawa
• Programmer: Katsuhiro Nozawa, Kouji Kaneta, Keigo Yasuda
• Game Planner: Mr. Ura, Miss. Megumi, And Takatsu
• Game Designer: K.Nozawa, K.Yasuda, K.Kaneta, And T.Takatsu
• Observer: Nandemo Enchan, Doudemo Imai, Izukomo Aoyama, Soredemo Tsuji
• BG Designer: T.Yamamoto, Tsukasa Shindou, Taiichi Matsuda, Yutaka Satoh
• Character Designer: T.Yamamoto, Tomomi Wajima, Moto Yamaguchi
• Sound Effect: T.Sasagawa, T.Takimoto
• Music Program: T.Sasagawa
• Music: Kinoko Kunimoto
• Special Thanks: Mr.Maruyama, Mr.Yamamura, Mr.Nakamoto, Mr.Takahashi, Mr.Tamura
• Very Special Thanks: Cha Kato, Ken Shimura

See You Next Game

Good Bye...

End

Source:

In-game credits (JP)

Magazine articles

Main article: J.J. & Jeff/Magazine articles.

Physical scans

PC Engine version

NEC Retro Average
Publication Score Source Complete Guide to Consoles 91 №1, p51 Computer & Video Games 80 №82, p108

	86
Based on 2 reviews

PC Engine, JP
Cover
Card

TurboGrafx-16 version

TurboGrafx-16, US
Cover
Card Jewel Case

Technical information

ROM dump status

System	Hash	Size	Build Date	Source	Comments
?	CRC32 6069c5e7 MD5 23df0b354e83876a94e9c128a7a9eb80 SHA-1 1381c15587891083f7cde3b1224fcc6df45bc914	262,144		Card (JP)
✔	CRC32 e01c5127 MD5 b614f91296aaed8afabd4f03f4ee40d1 SHA-1 18ae2d9031f49e54145d83ff90df4189c36adef1	262,144		Card (US)