 Players earn credits for knocking out opponents , scoring points , and impressing the crowd with violence and skill . The credits can be used towards player enhancements such as black market performance @-@ enhancing drugs . A crowd meter displays audience support , which boosts the player 's team abilities when filled . IGN found the game to heavily rely on teamwork . Computer players on teams rated with low teamwork will not take initiative to pursue the disc or to help teammates in need . This attribute can be raised over the course of a game . Players can call plays including physical offense , fast offense , neutral , defense , and goal defense . 
