頭突き頂上決戦 (Zutsuki Choujou Kessen)

Background
A sequel to Zutsuki, Zutsuki Choujou Kessen is a complex song about Lapis' efforts to regain her status after someone spreads a rumor about her not being the best in head-butting and her intense battle with Suzuki-dayo, a rival from the "north".

Due to the PV's high speed and viewers' difficulty in understanding the events, danierukunP wrote a blog post about the background and events of Zutsuki Choujou Kessen. Among the things noted are that "Zutsuki Choujou Kessen" was originally a song about Oden, and that production of the MikuMikuDance started in October 2012. It is also noted that Suzuki's second form is the same cardboard box that Lapis fought with in Zutsuki, and that in the PV danierukunP was killed by Suzuki shortly after writing Twitter posts declaring that Lapis was not the best at head-butting (resulting in Lapis' encounter with Suzuki when hunting down danierukunP).