Every round, a sequence of randomly generated tiles will appear. Once the sequence is finished, click the repeat it by clicking on the tiles at the bottom. As you progress, the time between the appearance of the tiles will get shorter and more and more tiles will be added. If you get one of the tiles wrong, you will lose a life. If you lose all your lives, you will die. You win by getting to level 90 and completing it. Both the level number and amount of lives are displayed in the top left corner. Click the green flag to restart.
This is the cheat version that I created using my remix account.