Nickelodeon All Star Brawl 2's Story Campaign has original writing for it's characters so it means these characters get original dialogue and even some interactions towards the NPC's and bosses.
In this video, the princess of the fire nation has to save the universe.
Like the other campaign interaction videos i posted, there was some weird bugs with the audio towards Vladand Clockwork. So i had to edit the lines into the video later.
Keeping the Avatar series going even if the game thinks they're diffferent, Korra is up next.