Vlad, that's an interesting concept, though i believe it's on the list of things not to suggest. However, that does sound rather fun. However, replays would be impossible to save and lag would ruin it for one player or another, and it could be also exploited in a plethora of ways. For instance, a player could set up a kick and wait for the other player to get close enough just so they could hit them, ruining the balance of gameplay.