Poppippo
That's Tako Luka having her batteries inserted. Tako Luka's popularity really took off when she starred in her own rendition of Poppippo. Man of Evil
Len, the 悪ノ召使 Servant of Evil, saves Rin, the 悪ノ娘 Daughter of Evil, from Kaito (the Prince of Blue in the series). World is Billy's
Literally - World's #1 Billy-samaPervert Meltdown
The elder Rin jumps in from the original song 炉心融解 Meltdown to save the younger Rin from Kaito in his cover of the parody song ロリ誘拐 Loli Kidnapping. a flower hair accessoary
lyrics from the song melt "ohana no kami kasari"I cut my bangs
lyrics from the song melt "maegami wo kitta"Black Rock Shooter