Haha, I love the streamers idea, but that might get a bit old after a few weeks :/
Maybe we could randomize it?
Like you can kill a gazelle and have it explode into fish randomly (idk xD), but then when you kill a different gazelle after that, it would explode into black smoke? And there could be more variations to that as well just to spice up a bit?
For leveling, I would disagree on, because it would lead to cyberbullying and such. >.>
All in all, I support prey :3
((Lol, i can't wait to divebomb herds of zebra with my winged characters XD))