Information on how StreetPass works with Samurai Warriors: Chronicles has come to light, and apparently, your 3DS will fight for you when you're too busy to do it yourself.
According to a post on Andriasang, it will work similar to other games like SSFIV and PES 3D, whereby players will form a team of four characters, select a weapon for each, and then let them fight it out in your pocket while you take your Mom out for dinner.
Should your handheld ascertain there's another Samurai Warriors Chronicles player in the vicinity, it's on.
Whether players win or lose against one another will see you swapping out weapons with the other, and if you win, you can walk away with some bonuses.
It's all very interesting, and you can read more about it through the link.
Samurai Warriors: Chronicles will launch with 3DS in March.