Tic Tac Toe 5x5 Sizes and Modes

My Tic Tac Toe 5x5 game. Players can change the size of the board by tapping the buttons on the top (3, 4 and 5). On the bottom they can choose to be X and go first, or O and let the computer go first. They can also tap the person button for pass-and-play with a friend.