(I'm pretty sure that I'm the first person to do something like a viewer of the situation...) this caption game is from the perspective not from the Ninga's but from the eye's of someone looking at the Ninga about to attack a guy through a sniper scope across the map.
"Hey guys, I got a headshot lined up... Wait, is he DANCING? Guys! We have a dancing ninja on our hands! I need BACKUP NOW!!!"
It's spelled "Ninja," dumbass. This isn't even a good picture for a caption. There's not much you can say about it. None of the comments I've seen so far are even remotely funny. Though I do like your sniper perspective idea, you need a better picture that is actually funny.