If you're a fan of Japanese animation — or you just have a thing for ninjas — “Pockie Ninja II Social” is the app for you. This fully licensed Naruto app for Facebook features various super-deformed characters from the hit TV show, fighting it out in strategic action. With a number of fighters to choose from and weapons to use against your adversaries (including explosives, shurikens and spells), you'll have your ultimate ninja arsenal ready to go in no time flat. And there's a good learning curve as well, so it's simple to learn, yet hard to master. With more than a million would-be ninjas playing, there's no shortage of competition.