Patrick I think the most remarkable thing about your game is the feel you get while playing it. It's very relaxing and I think that's mostly thanks to your great sound and tuning of the player movement speeds. It's also very impressive that you were able to figure how to swap between players ;). One thing I do think would be cool to add to that, is a perhaps some movement that smooths the camera to the other player's position, or maybe a zoom out then in effect. However, that might induce motion sickness and would feel less immediate, so just something you could experiment with. I agree that player models would help this game a lot, but I also think that you should add some animation/particle effects to the gun when it is shot, to give that a larger feeling of impact. I also really enjoyed your terrain, but it might be a good idea to make the platforms a little easier to get onto because at certain angles you can't step on them. I think some animated water would really add a lot for immersion as well. All in all, this is a great prototype and really shows what this game could be and even in its current state it's really fun!