Choosing Marathon from the main menu will start a Marathon game. In a Marathon game you are challenged to score a certain amount of marbles before the time runs out. There are fifteen levels of increasing difficulty.

To do this, you need to make groups of three or more marble of the same colour on the middle row. Use your left and right keys to move the cursor to the row you want, and up and down keys to slide the rows. You can only slide a row which has space, so as the rows fill with marbles you will find it more and more difficult to find moves which you can do.

You can score big points if you make more than one group of marbles in a single move. That is, when you make a group, the marbles above the group fall down and create a group straight away. The other way of scoring quickly is by making a combo. This is done by making groups of marbles in the colour of the combo marble shown to the left of your board. Underneith the marble is the combo's value. By making groups in that colour, the combo value is increased. A group of three increases it by one, and a group of four increases it by two. Then, make a group of five marbles in any colour to unleish the combo on your opponent. This is the only way to win on some of the later levels.

When you lose, you may have a chance to enter your name into the high score table which lists the best Marathon mode scores.

The scoring is as follows