Chibi Theater: Fly, Cadets, Fly! (ちみキャラ劇場 とんでけ！訓練兵団 Chimi Kyara Gekijō – Tondeke! Kunren Heidan?) is a series of flash animated gag shorts included with each Blu-Ray Disc/DVD releases of the anime featuring the characters of Attack on Titan in chibi form based on designs by Yuupon.[citation needed]