From Siliconera.com
That is an extremely large and nice piece of artwork, especially when you compare it to the size of the Wii case.
It’s official! The North American version of Muramasa: The Demon Blade will come with the wall scroll Japanese gamers got for everyone who pre-orders the game. Gamestop is now accepting pre-orders, so you might want to hurry if you’re scared of the thing selling out.
No news from Rising Star yet as to whether or not they plan to offer the scroll in Europe, but keep your fingers crossed!
Thanks for the tip Denpa no Sekai.

That is an extremely large and nice piece of artwork, especially when you compare it to the size of the Wii case.