"W","A","S","D" to move! "SPACE" to shoot! "E" or "Q" to change your weapon. "1" to spawn a "training target" This is just a test, not an actual game, this is why it looks kinda lame but, well, it's fun. You can play with it as you like, I'm currently not going to do anything with it since it's experimental.
This engine works with clone detection of the finest type: clones detect each other and react accordingly (when targets hit each other, they give inversive impulse, wich means they will never occupy the same space)