9 is a very important number in this action game. Beneath the 9x9 board the game offers you patterns of maximal 9 logs. Your job is it to take these log patterns and to fit it in the board. If you fill a 3x3 square or a column or row of 9, the belonging to logs will disappear and make place for others. If you lay logs on another logs the color will become darker and darker and finally the logs are converted to marble. Only bombs can remove marbles. Every time you finished a group of 9, you get on to the next level. The higher the level the shorter the time for placing a log pattern. Sooner or later the ultimate crash will come. The more points you accumulated so far, the higher your position in the highscore list.