The game is about performing different kinds of organ transplants to different kinds of patients. There will be old, young and middle age patients that needed immediate care from you. You need to move fast as every second is important. On the left side of the screen you will see patients waiting for your attention to perform the operation. On the side of the patient you will see the organ that needs to be replaced. You need to look on the timer of the organ as it will let you know the time left for the patient to survive. If it runs out you lose a patient as well as one of your lives. At the bottom you will see the organs available for the transplant. There will be times that there are more than one same organ, you have to be cautious in choosing the organ, and it has to have the same size with the patient. Most of all monitor your time. You need to perform all the operations during your shift.