Once you've entered the turret you'll have an unlimited amount of shots to hit as many discs as possible. After missing ten discs you'll automatically stop. The discs that appear are red, blue and green. Where red awards the least amount of points, green will award the most. The earlier you hit a disc the higher the reward. The turret auto-aims slightly, but it's recommended to avoid firing randomly as combo's can be build up by hitting discs in a row without missing any or missing any shots. Thus it is recommended to avoid spamming the fire button unless you are bound to miss a disc.