So far, I've only seen Battleground Z's credits, but if I find Ultimate Angler, I'll post it as well
Battleground Z / Streetpass Zombies
Good Feel
Producer
Etsunobu Ebisu
Director
Koichi Ogawa
Game Design
Tomoya Sugiyama
Program Director
Daisuke Kobayashi
Programming
Takuma Miura
Tatsunori Wada
Takuto Miyamoto
Art Director
Masashi Tsuboyama
Character Design
Kimika Yagi
Graphic Design
Erika Tsukahara
Midori Ishibashi
Yui Namizaki
Asami Kawabata
Tadanori Tsukawaki
Music & Sound Effects
Akihiro Juichiya
Tomoya Tomita
Nintendo
Producers
Kouichi Kawamoto
Toyokazu Nonaka
Associate Producers
Ryusuke Niitani
Yoshiaki Onishi
Graphic Supervisors
Akiko Kato
Chiaki Aida
Yo Onishi
Sound Director
Kenji Yamamoto
Sound Coordination
Minako Hamano
Technical Support
Shingo Okamoto
Toru Inage
Yuta Ogawa
SPD Technology Group
Debug
Manabu Matumoto
Shigeo Takada
Atsushi Takeda
Masahiro Kishi
Mario Club
Localisation Coordination
Paul Logue
European Localisation
NOE Localisation
North American Localisation
NOA Localization
Advisor
Takehiko Hosokawa
General Producer
Shinya Takahashi
Executive Producer
Satoru Iwata