Alien Syndrome/Production credits
From Sega Retro
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Arcade credits
- Music: Tohru Nakabayashi[1]
Master System version
Game Gear version
- Graphics: Syouji "Enjyoh" Yoshihara
- Sound: "Fumi"
- Program: Susumu Senba, Teiou, Dirty
- Direction: Yoshiharu Sakino
- Special Thanks to: Yama‑San, Matsutokujō, T.Asano, Danna, Sen‑Kichi, Yas & Daiōjō, Ratman, and Many Other People
- Presented by: SIMS Co., Ltd.
NES version
- Programmer: Naoki Okabe
- Desiners: Tetsushi Nakamura, Yuji Koharu
- Sound Editor: Noboru Machida