As we get cases of Attacktix from Entertainment Earth, that's where this came from. As far as we know it hasn't shown up in brick and mortar yet, but you can order one online-- or wait.
Each figure has a spring-loaded attack-- basically, all are firing projectiles except Landquake, who has this claw thing. Which is pretty cool.
It ships in an assortment with a companion Star Wars set featuring Chewbacca and Han Solo (Hoth gear) as well as Darth Vader and a Stormtrooper. So Attacktix still has a lot of product on the way, it seems. I'm especially fond of the Legends-style Skywarp in this set.