One player from each team is randomly selected as the "counter-agent" and is in fact helping out the other team. Tough luck if this player happens to be your goalie.
If a person has already done a goal with a certain part of their body, they can't do another goal with that same part.
Penalties as free kicks. There is no such thing as a penalty anymore. Wherever the foul is committed, a free kick is taken from there. Can shoot from there if you like as well, or make a wall to block.
One of the team is selected as a "brickie" and can put up 1-2 metre walls up during the game in any area that is outside of their own box. You can box in the other team this way, adding further meaning to this saying.
Points system is completely revamped. 0 points for a loss, one point for a no-score draw, 2 points for a score-draw and 4 points for the win. Bonus point for the losing side if they lose by one goal.