Multiplatform
If it's a good game, it will always sell more on multiple systems, than on one, in my mind. If it's a crappy game, or very, very niche, than it will sell slightly more, but it'll be a negligible amount.
Say Brawl had come out in Japan last week on the wii and ps2. Do you think that it would have somehow sold less than the ~800K that it sold? I sure don't. I wouldn't be surprised if it sold more than double that.








