MURDER BALL!
For anyone who doesn't know what it is, i'll give a very brief description:
Evolved from rugby, in the same way that rugby evolved from football in other words they aren't really related. Basic idea is to get into the try-zone and score. No conversions or penalties or scrums. You just keep going. You can pass forward. Set pieces are very rare. The only one's ever used are lineouts, whereby you just wait 'till the teams are ready, then pass it to a friendly guy. For the lineout, you have to be behind the original passer. Only a few rules:
1. You must not tackle someone who doesn't have the ball.
2. You must_try_to obey the Law of the Land i.e. you cannot commit homicide (!)
3. No eye-gouging.
Thats it! A vicious sport!