Your viewers type !join and walk out of the gates.
Viewers who type the join command are queued and walk in through the four gates. When one falls, they wait out the respawn cooldown and come back through a gate.
Slashes sweep across the screen and can hit several fighters with a two-handed weapon.
Stamina is unlimited: sprint, swing and block as much as you like. A block raised just before a blow parries it and leaves the attacker open. Press 2 to draw the MP5 (automatic, infinite ammo) and 1 to go back to the weapon you picked in the armory.
A fighter's chat messages float over their head while they're in the arena. They can type !taunt to play to the crowd, or !leave to quit.