YouTube member tube4w has unboxed the Japanese version of New Super Mario Bros. 2 that was just released today. Here's the video break:
Here's the highlights of the break if you're unable to watch the video:
The case is gold.
The instruction manual is a mere 4 pages.
The eco friendly holes on the inside of the case features coins, Mario, and a couple enemies.
The North American version is going to be released on August 19, 2012. You can pre-order that version on Amazon.com.