Capoeira is played in a circle called Roda, which is Portuguese for circle or wheel. Two Capoeristas in the middle are sourrounded by the others who form such a circle and play music. The players/fighters in the middle exchange via determined rites. You can see different types of Capoeira games below: Benguela, Sao Bento Grande and Iuna.
Benguela
http://www.youtube.com/watch?v=czwhHnvFlp0
Sao Bento Grande
http://www.youtube.com/watch?v=h7T6ZXI8ov0
Iuna
http://www.youtube.com/watch?v=THh0aOzBckQ