Actually they are called REBorn FYI
If you like Reborns, just wait until you get to see their variants; their's Newbie Reborn (Orange), Fencer Reborn (Green) Acrobat Reborn (Purple) and the hardest of them all, Boss Reborn.
You can usually tell an epic battle is about to take place when the music sort of is at a standstill and you just cleared out the area, then pops up two to three reborn you must make One with the force.
And boy if you like the reborn, there's going to be much much more epic battles ahead (*Ahem* Shadow *Cough*)
Sadly, and I'm sorry to disappoint you, the Multiplayer is nothing like the Single Player experience, the moves are not as cinematic and the force powers (like force speed and push) are not nearly as effective as they are in the Single Player game.
How are those bosses treating you?