What is this colloquial / dialect form? 〜たるけんね


![Screen shot](https://i.stack.imgur.com/C0JTZ.png)

I'm [still playing](https://japanese.stackexchange.com/q/11926/1478) Final
Fantasy VI, and I came across this bit of dialogue:

> マリアの頭にオモリ  
>  落としたるけんね。

I understand it up to `落とし`. Orthros is going to drop the weight on her head!
I can't make heads or tails of `たるけんね`, though. I assume it's some kind of
dialect.

My best guess is `落としたるけんね` ← `落としてやるからね`. Specifically, I think it might
involve these two changes:

  * `たる` ← `てやる`
  * `けん` ← `から`.

Does that seem right?




I think ~~たるけんね is Kyushu dialect for ~~てあげるからね(for a desired action) or
~~てやるからな(for a desired or an undesired action; can have a vicious tone). Here
I think it's the latter. I don't know if it's Hakata-ben, Kumamoto-ben or
another but [this page (博多弁ば教えちゃる！)](http://allabout.co.jp/gm/gc/67258/2/)
states:

> 博:よかよか！試合中に教えたるけん。  
>  （いいよいいよ！試合中に教えてあげるから）




I think ~~たるけんね is Kyushu dialect for ~~てあげるからね(for a desired action) or
~~てやるからな(for a desired or an undesired action; can have a vicious tone). Here
I think it's the latter. I don't know if it's Hakata-ben, Kumamoto-ben or
another but [this page (博多弁ば教えちゃる！)](http://allabout.co.jp/gm/gc/67258/2/)
states:

> 博:よかよか！試合中に教えたるけん。  
>  （いいよいいよ！試合中に教えてあげるから）

