It has been confirmed that you can have two on one fight in Naruto Shippuden: Ultimate Ninja Storm Revolution. This was confirmed yesterday with the wave new screenshots showing one character with support while his opponent had none. In these cases it seems to be two player teams vs one according to the screenshots the article uses yet they say three on one is possible to. I will post the images below for you to take a look at.
Article: http://www.saiyanisland.com/2014/07/naruto-storm-revolution-team-vs-single-battles-confirmed/
As always thank you for reading.
