Metroid: Symphony of the Fight!
Super Metroid! There's a double meaning to behind those words: Super Metroid for the SNES was a phenomenal game in its own right, but was also one of the best SNES games ever made. Metroid: Zero Mission builds on that same, excellent gameplay which is still as fun as a first time through the original Super Metroid.
The graphics are quite reminiscent of the SNES game, but have been improved for the 32-bit platform of the GBA. The images and animation are sharp, and the effects are what you have come to expect from the series. Arguably, graphics don't make a game--they can certainly add to the experience, but it should not be the most important aspect. When graphics start to detract from the experience, then there's a problem... these are perfectly adequate and do nothing to deny the player.
The music in the game brought me right in, despite the tiny speakers of the GBA. The sound effects immersed me, so if you tend to play with your GBA's volume off, I can only encourage that you change your habit while you play this game. The music is almost mesmerizing, and enriches the experience.
Overall, I had just as much fun, if not more, with this game as I did with Super Metroid for the SNES. The only complaint I could make against it was that there wasn't more of it; it went by faster than I wanted it to. For the avid gamer, there are lots of secrets to uncover, and the game can prove difficult at times, so that may add to the otherwise short length. Even with very casual play, I was through Metroid: Zero Mission in a couple of weeks.