As has been said, Super Metroid was one of the best games ever made. Certainly the best in its subgenre. The others were pretty great too, even the original which was pretty innovative for its time. Metroid Prime was a great transition to FPS but not as fun as the side 2D games. I've only played the first one but I got the second for a good price the other day and would love to try it out if I had the time.