This is easiest to do on the first 3 rounds. Fruit appears twice per round and does so after you've collected so many power pellets. Collect enough pellets so that when the first fruit appears you can hurry and collect it. Be careful not to die before you get it as the fruit will disappear. Then collect more pellets so that the second fruit appears. After that beat the round, then after the third round in a row is done the achievement will pop. Just remember to not die while a fruit is on screen and you should be alright.