10 POINTS FOR FIRST CORRECT ANSWER / Can someone who reads japanese translate this for me ?

Question:

Is this classic anime. Like on of the first anime. This little 20 second thing. it has a couple of guys jumping into... well, I dont know what it is. It looks like some sort of barrel.... And then one big giant guy comes out.

It starts at 0:13 seconds. What is the premise of this scene. What is that barrell thing, why are they jumping into it. Are they transforming into one big guy ? It has japanese subtitles. What do they say.

heres the link:
http://www.youtube.com/watch?v=CHERsqFT9B8&feature=g-vrec

Answer:

This is a collage of extracts from different animes.
The barrel-like thing is a hammer named "Uchide-no-kozuchi".
http://en.wikipedia.org/wiki/Issun-b%C5%…
http://en.wikipedia.org/wiki/Uchide_no_k…
The subtitle says: Issun-boshi, story of one-inch boy.
I don't know why Issun-boshi multiplies, and why multiplied Issun-boshi rush into Uchide-no-Kozuchi.
But using Kozuchi, he can be a standard-size guy anyhow.
The part starting at 0:13 is from another anime: "Private Norakuro", the story of a dog soldier.