A method in a gaming system comprises receiving a wager and displaying an array having a plurality of array positions. Each of the plurality of array positions is populated by at least one of a plurality of symbols, which include a mega symbol configured to occupy at least two array positions on each of at least two adjacent columns of the array. In response to at least a portion of the mega symbol displayed in the array, the method includes determining a functionality for the mega symbol based on a number of array positions on which the mega symbol is displayed, the portion of the mega symbol displayed, the size of the mega symbol displayed, a random determination, the received wager, or a turnover amount over a plurality of plays. A payout is awarded based on the symbols displayed in the array and the determined functionality of the mega symbol.