Vaccination is a game operated by two players and their aim is to work together to keep the patient alive for as long as possible. One player has the role as ‘The Scanner’, using the monitor and and the joystick controller they will ‘scan’ the patient's body for bacteria. The other player is ‘The Injector’ and they position themselves with the ‘injector’ in front of the patient and the vaccines. The Scanner replays information on the whereabouts of the bacteria to the The Injector so that they can wipe them out with the correct vaccine.