To play the game you must press the number 1 or number 2. Doing this will select the player you are. If all players are taken you can still play. To win the game you want to answer all 9 questions and try to keep the number in the upper right corner above 10. To select the parts of the cell you are to press the image or the arrow to where it is at. Once you get to the end you will not be able to answer any more questions (This is without pressing the green flag again). The questions you will see are trivial questions about each component. An example question is "How many cell membrane(s) does mitochondria have?" When playing the game the player will learn where the cell components are located.