Arandelix about 7 years ago Album: PUNK IT! TOUHOU! -IOSYS HITS PUNK COVERS-31 March 2013 releasehttp://www.iosysos.com/cd/tp1/
Tsumanne about 7 years ago Track 1 is チルノのパーフェクトさんすう教室 (a Cirno song, sung by Cirno no less) thus the cover art. The original version with accompanying video is absolutely hilarious.
Type-kun about 7 years ago Hm, so they are re-arranging their own arrangements, punk-style? Interesting.