When it comes to shoot-em-up (or 'shmups' to use the correct parlance) I have always teetered on the brink of becoming a hardcore fan, having spent a brief period thoroughly addicted to Cave's wonderful games. But, like junk food and pop music, the novelty soon wears off and I end up ditching it for something with more depth. However, after many years of playing shmups I can definitely say that the games that hold my interest for more than a few plays are those that have interesting environments to traverse; the beaches of war torn Europe; a city under alien invasion; a forest base or the depths of the ocean.
