A gaming machine and a method of playing the game which includes randomly displaying a plurality of game elements (20) in a grid (14) of cells (16) to produce a normal random display with one element (20) in each of the cells (16). A bonus random display of the game elements (20) is initiated in response...http://www.google.co.uk/patents/US6939228?utm_source=gb-gplus-sharePatent US6939228 - Gaming machine having dynamic bonus feature