(C75) [Tsurupeta Kenkyuusho (Various)] Tsurupeta Kenkyuu Houkokusho "Kessen Zenya" - Turupeta Research Report Hentai (C75) [つるぺた研究所 (よろず)] つるぺた研究報告書「決戦前夜」

(C57) [Tsurupeta Kenkyuusho (Hoshino Fuuta, Okaya Hitsuji)] Hoshino Fuuta no Oekaki Book (Various)

Tsurupeta Kenkyuusho Triangle horse race

Tsurupeta Kenkyuusho Houkokusho

[Tsurupeta Kenkyuusho (Various)] Tsurupeta Kenkyuu Houkokusho 005 "Dengeki Jigoku" - Turupeta Research Report

(C77) [Tsurupeta (Various)] Tsurupeta Kenkyuu Houkokusho "Shin Hissatsu Waza no Kyoufu " - Turupeta Research Report

Tsurupeta Kenkyuu Houkokusho 011

(C86) [Tsurupeta Kenkyuusho (Various)] Tsurupeta Kenkyuu Houkokusho 009

Tsurupeta Kenkyuu Tokubetsu Houkokusho ~Artbook of Hirohiroki

(C73) [Tsurupeta Kenkyuusho (Various)] Tsurupeta Kenkyuu Houkokusho "Tsurupeta Kyoudan no Yabou " - Turupeta Recearch Report

(C74) [Tsurupeta (Various)] Tsurupeta Kenkyuu Houkokusho "Kakyuu Sentou In no Isshou" - Turupeta Research Report