Enter the on-call room, where you decide about life or death with a single press of the spacebar. Rhythm Doctor is an unusual rhythm game in which you heal patients by defibrillating their hearts at the perfect moment – on the seventh beat of the bar. It sounds simple, but the fun quickly turns into a challenging challenge based on the true principles of music theory. Each patient is a different rhythmic "case" – polyrhythms, hemioles, custom meter and other musical tricks will make you react more intuitively than theoretically. You don't need to know these concepts to have a great time – the game teaches you a sense of rhythm and music theory in a natural, practical way.