Generally the rules are taken from Aussie Rules, but each team consists of 15 players, like rugby union. 
Unlike Australian rules football, player movement is restricted to zones (similarly to Rec Footy). There is a line across the centre that backs and forwards can not cross. Onballers are allowed to go anywhere. Forwards can only operate in their attacking half, the backs in their defensive half. Like Gaelic football, players are permitted to bounce the ball only once while running, in order to encourage kicking.
The Vailima Six-Shooters' Championship began in Samoa in 1998 under these rules, becoming known as Samoa Rules. A number of Samoa Rules players went on to represent Samoa in the Samoan national Australian rules football team, known originally as the Bulldogs and since 2008 as the "Kangaroos".