Ah, the Ubisoft ones online component was a tournament structured set of matches. Players get 'cheevs for progressing to
n points, which IIRC directly related to the number of matches you cleared. There were a maximum of 8 stages, and I think you could win 2 matches to clear the stage.
By the time I played it, no-one else was.

The three times I tried to play, I lost badly in the first stage, restarted, lost in the second stage in a match with HIGHLY SUSPICIOUSLY TIMED LAG, restarted and then ran into a match against a player who'd previously beat me, that I proceeded to thrash, so he ragequit. FFFUUU...
So if online is your goal, you should probably stick with the pure fighter brand.