Smash_Brother.
It doesn't have to sell as much as Halo 3 in USA, since JapanSSBB /=/ Japan + Europe Halo 3. Therefore Europe + USA SSBB needs to > Halo 3 USA.
2.9M for Europe + USA is a definate possibility.
As I mentioned earlier, the attachment rate for Europe + USA SSBB only needs to be 1/6, while Halo 3 had 1/3.
SSBB had 1/6.1 in Japan. USA is even more first day buyers, while Europe not so much.
If we say Europe has an attachment rate of 1/10, which is lower than I believe, it sells 700K + there. That means Brawl has to sell 2.2M in USA. That is a 1/4.5 attachment rate.
If we say Europe has an attachment rate of 1/8 that means it sells 900K, which leaves 2M to USA. That's 1/5 attachment rate.
If I had to say changes for 1st day sales > Halo, I'd say 42 %
http://www.vgchartz.com/games/userreviewdisp.php?id=261
That is VGChartz LONGEST review. And it's NOT Cute Kitten DS
