A method and system is provided for conducting a wagering game. A spin result is determined, the spin result including a set of symbols positioned within a set of symbol positions. The symbol positions may be arranged in rows and columns or another arrangement. The spin results and associated symbol positions may be displayed on a viewable display area. A prize associated with the spin result may be awarded. The wagering game may include a first trigger condition, a second trigger condition and an end condition. If the spin result meets the first trigger condition, additional symbol positions may be added. If the spin result meets the second trigger condition, symbol positions may be removed. If the spin result meets the end condition, the wagering game ends. If the spin result does not meet the end condition, the wagering game continues by determining a next spin result.