Hmmm. idk
I don't really know what to say about this. First off, I like the idea. Great concept. However, I did find a few things that I'm not thrilled with. First off, if you position your guys down at the "cross hair" in the lower left, it's really easy: just look for anyone right along that edge. Pop up or right to grab anything that comes by. The odds of something hitting you are rather low, and it's easy to dodge the objects.
Second, the hit detection isn't perfect. There were times that I was a little glad and a little disappointed the h/d was the way it is, but it's certainly not awesome.
Lastly, I didn't see any information on what the various powerups do. They just kind of show up, you get them, then you figure out what they're for. Not that I don't think they're great, I would have just appreciated a little more predictability.