Parkour is definitely a part of the street level vigilante life. Strangely there isn't a straight acrobat/ freerunner class. The protégé has some aspects of that, but has a lot of other genre attachments associated with sidekicks. When I have some time, I might create a pure acrobat class. For this post though, I've statted some acrobats that you can use as npc's in your Gunzo!: True Vigilante game.