NSMBW is going to be MASSIVE in Japan. Preorders rank higher than NSMB DS.

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Lepton 12/3

FF13 3904

NSMB Wii 1627 (+790)

Gundam V- 902

PSP2- 714

ToG- 646 (+85)

SW3- 229, 134- 363 (+100)

Power Pocket 12 DS finished with 73 orders

Assassins Creed 2 PS3 finished with 180

Pikachu debuts with 84

Source:

http://nipponsalesage.blogspot.com/2009/12/lepton-123.html