Purchase gift cards Nov. 1 - Dec. 31 to receive bonus certificate. Redeem bonus certificates January 1, 2019 - March 31, 2019. Bonus certificates may be applied toward the purchase of food and beverage at any Food Fight restaurant. Bonus certificates may not be used for tips, private parties, or exchanged for cash. One time use only. No change will be given. Not valid during Restaurant Week, or with other Food Fight or individual restaurant promotions.