The Gunstringer

As with the other two cow-related achievements (http://tinyurl.com/cm4shah and http://tinyurl.com/cnpbqhs), this can be unlocked in the mini-level between the two levels of the DLC. There are three cows on screen, and the objective is to shoot them into the air, and then keep shooting them to make sure they don't drop to the ground. For this achievement, you have to shoot/juggle ONE of the cows 30 times, so ignore your combo counter, as it only tells you what your total score is, all cows included. You can let two of the cows drop if you want, since you really only need to keep juggling one of them to get all three achievements. If the cow drops straight down, shoot by moving your hand straight up, and if it drops at an angle, shoot diagonally, to make sure you hit it. Really not hard at all as long you keep track of the cow when it goes above the edge of the screen so you can predict roughly where it's going to land.