Your performance in Hotline Miami is measured by a scoring system that rewards speed, efficiency, and brutality. Points are awarded for each kill, with bonus points for executions and environmental kills. The most significant factor in your score is the combo multiplier. Killing enemies in quick succession without taking damage or breaking the chain will increase your combo, multiplying the points gained from subsequent kills. Maintaining a high combo throughout an entire floor is the key to achieving an 'A+' grade. Grades range from 'D' to 'A+', with 'A+' often unlocking new masks or providing other rewards. Don't be afraid to restart a floor ('R') if your combo breaks or you make a mistake; perfection is often required for the highest scores.
