There are some nice little touches in this game. I like how the balls have a minimum bounce height so it's always possible to shoot them. I like the way the beam gets wider to indicate reload time. The game has sound and music and it's clear from the outset what you're supposed to do. My only gripes are that if you destroy a ball quickly there is a long delay until the next one spawns, and that balls quite quickly bounce off the screen. Those are only minor gripes though to what is otherwise a great game.