This, apparently. The game is being released with a Japanese voice track. Ever wondered what Japanese people thought of English language dubs? Well maybe now you know. Maybe you don't. Who knows!

Uncharted 2 will be released in Japan on October 15.

PS3『アンチャーテッド 黄金刀と消えた船団』の日本語版プレイ動画 [オレ的ゲーム速報@刃]