Ahh! It's the Giant Armored Octopus! ...Oh, he's named Tako?
This article is about a subject that has not been officially named in any official Katekyo Hitman Reborn! translated material; the current title is merely a placeholder.
The Cloud Tube is one of the Cloud-attribute Box Weapons of the Sistema C.A.I. owned by Hayato Gokudera.
Description[]
It is the Cloud Flame ammunition for the Flame Arrow. It fires a beam of Storm and Cloud Flame that branches out, creating a "tree diagram", due to the Propagation characteristic. The beam creates a widespread attack that is difficult to avoid.