Lurking between the blood cells you will find BCR-ABL and they appear when least expected. Sometimes they are fast, sometimes they are slow. It is a race to eliminate all the BCR-ABL before your time runs out. Shake or tap away, then be
rewarded by achieving a complete “Shake and Collect” response. If you are really quick you will find yourself with extra time to complete the task. Each level becomes more challenging. Are you the “Master Shaker”?