Rhythm Doctor from Best Free Online Games on PC

This one belongs to those "hit-the-right-button" type of romps, and it belongs on the list of best free games because it has one clever twist – it’s about hitting the button on the patient's heart rate monitor. The beginning is simple enough, but once you get further, you'll have to treat people with unstable heartbeats. The music gets quicker; the pace becomes accelerated, and it’s up to you to hit buttons on time.