This is a particularly manic shooter that actually makes huge clusters of bullets a good thing. Apart from smart bombs that neutralize enemy shots (the animation changes depending on what ship you pick), you can charge up your gun to use the Reflector Shield. This makes an energy barrier around your ship that sends all enemy bullets back in the direction they came from. If a reflected bullet hits something, it turns into a little bonus item you can pick up for more points. Getting as many of these as possible is the key to scoring points in the billions (this IS indeed possible, thanks to the number of digits in the game’s score counter).