I went through the
credits on YouTube and found Arzest and NdCube's listings:
ARZEST Corporation
Producer
Yoji Ishi (Artoon, Sega) (Development Producer in Blinx 1 and 2, one of two Project Managers in Sonic Adventure and the sole Project Manager in NIGHTS into Dreams, one of two Producers in Panzer Dragoon and one of four Producers in Ristar Genesis)
Directors
Naoto Ohshima (You all know him
)
Yutaka Sugano (Artoon, Sega) (Software Support in Sonic Adventure, one of the Object Placer in Sonic 2 as well as the sole Special Stage Object Placer in Sonic 2 as well, Special Thanks in Panzer Dragoon)
Game Design
Tomohide Hayashi (Artoon)
Mikio Kume (Sega)
Program Directors
Yuki Hatakeyama (Artoon, Sega) (one of the two Field Program Supporters in Sonic Adventure)
Shinji Iseki (Artoon)
Minoru Ogawa (Artoon)
Programming
Kenji Miyakawa (Sega, this was seemingly the closest and most sensible match)
Koichi Watanabe (Two listings, one that shows an
Artoon game and some Nintendo games, another that shows
no Artoon or Sega games, take your pick, the former has just one extra letter)
Art Director
Masamichi Harada (Artoon, Sega) (Art Director of Blinx 1, one of the two Art Directors of Blinx 2, and a Lead Field Artist in Sonic Adventure, one of the Attraction Designers in Knuckles Chaotix)
Graphic Design
Yoshihide Sasagawa
Akira Kokai (Two listings, one shows
no related games with the correct name, but another with a similar name with
two Sega games)
Koki Mogi (Artoon, Sega) (One of the Planet Designers of Ristar Genesis)
Hiroyuki Kawaguchi (Artoon, Sega) (one of the many Artists of Blinx 1, and in Sonic CD the Art Director, one of the Landscape Designers, and one of the Animation Visual Directors, wow)
NdCube only has two people in the credis; Atsushi Ikeda and Kenji Kikuchi, both of which were Hudson folks and were in most if not all MP games. Ikeda was in the Iwata asks for Wii Party, Kenji is a new Hudson folk no known before, only bringing the known count to four.