Most drills simply tell you how good each shot is relative to Boomer’s selected level. The possibilities are “out”, “weak shot”, “okay”, “not bad”, “good”, “great” and “perfect”. Also Boomer will give you a total score at the end so you can see if you are improving or if you want to compete with a friend by taking turns doing the same drill. Boomer also changes the its level depending on how well you play. If you are consistently hitting balls in the court deep, hard and near the corners, Boomer will up its level to challenge you. On the other hand, if you miss a lot of balls or hit short, soft and right down the middle, Boomer will lower its level to allow you to “get your groove on”.