Do not rely just on the roundhouse kick. You will be open for a counterattack at the end and will not gain score multipliers. Each punch you land on an enemy will increase your score multiplier by 1. The roundhouse should be used when facing multiple enemies. Hitting two enemies at the same time with the same roundhouse doubles the points. Three enemies will be triple points. Throw a punch at an enemy just out of range. This will cause them to pause to avoid the punch. They will then continue moving towards you. Use this feint to interrupt their movements.