Here are the rules for playing the 5x5 Tic-Tac-Toe game:

1. The game is played on a 5x5 grid.

2. Two players take turns, with one playing as 'X' and the other as 'O'.

3. To win, a player needs to get five of their marks in a row either horizontally, vertically, or diagonally.

4. If all cells are filled and no player has five in a row, the game ends in a tie.

5. In the "Play with Computer" mode, the computer will take its turn automatically after you place your mark.

6. You can start a new game at any time by clicking the "New Game" button.