came here to say that that version of this most wretched tune (Hit Girl’s ballet du meurtre, from KickAss) is my favorite. possibly due to the absolute rage the tune invokes in me. yes, murderous rage at the very hearing of it. coupled with the images of those… costumed things cavorting about, makes me want to spill copious blood.
this is not a happy tune.
and, yes, some of those amusement park scenes were filmed at Six Flags in Arlington, TX. i grew up a couple hours away from that place, in that time that Banana Splits had its morning TV run. i recognized the rides even then.
gawd how i hated those idiot goons and their stupid antics. the song makes me crazy.
kill 'em all, Hit Girl. kill them all.
perhaps i should seek counseling. 
