Watch Kasen-chan no Jasen Rouraku Challenge [ぼちぼちの木 (ぼるしち)] 華扇ちゃんの邪仙篭絡チャレンジ (東方Project) [英訳] [DL版]

(SC40) [Delayder (Makinon TM)] Yousei-san no?! Himitsu no Bouken no Tobira Preview ver (Challenge First-Year-Student)

(C63) [Kodomo Challenge (various)] Mainiti-ga-Kodomo-no-hi

(C64) [kodomo challenge (Various)] Natsu no Kansatsu Nikki

(SC39) [Various (Various)] Hatena? Challenge! (Challenge First-Year-Student)

(C64) [kodomo challenge (Various)] natsu no kansatsu nikki | Summer observation diary (Original) [English]

[Mikeke] Hatena Manga - Semete Yacchae! (Challenge First-Year-Student)

[Bochi Bochi no Ki (Borusiti)] Kasen-chan no Jasen Rouraku Challenge (Touhou Project) [Digital]

(SC39) [Nounai Kanojo, Ningen Modoki, Tateyoko Hotchkiss, Kagi Node (various)] Hatena? Challenge! (Challenge First-Year-Student)

[Bochi Bochi no Ki (Borusiti)] Kasen-chan no Jasen Rouraku Challenge (Touhou Project)

(C65) [kodomo challenge (Various)] Shukudai ga Owaranai