In the manga, I'm pretty sure he used his cigarettes to light his explosives -- in some cases he lite several cigarettes in order to use more sticks. They most likely took that bit out of the anime since the characters are middle schoolers and that wouldn't be appropriate. :)
AWWWW ITS SO DAMN CUTE XDD and i wish i could watch more then just cute >////> if you know what i mean but i have parents and i know they dont watch me but i always get the feeling they do so i stay away from yaoi TT^TT
ohhhh my god i know this song but i only heard it on a show called "Hakkenden :Touhou Hakken Ibun ". this show is animation but really good also have season 1 and 2.but i dont know wht this song is called. hoped i helped :)