It's 2 Players Splitscreen. 4 Players would ruin the Visual GFX and you can't see what your doing
It is 2 Player
Buying my SSX in 2 weeks when it hits England - Can't wait
Actually, it's 4 player (back of the box says so). I have only played 2 play split screen, which is fun (esp. side by side with a widescreen TV). I dunno how 4 player works, but I'm guessing things would get a little small.
You can do 4 player! There is a mode called the Hot Seat where you each take turns on one full screen! For instance, if me and 3 of my friends were playing, I would go first on a full screen, finish my run, then the next person would go (with a full screen). It's multiplayer just one at a time.