Pokemon LeafGreen is a superb remake of a classic game for Pokemon fans and newcomers alike, a must have for GBA owners.
Of course, Pokemon LeafGreen is a remake of the game Pokemon Blue (It was called Pokemon Green in Japan), which is a 10 year-old game that completely surprised the entire world. Pokemon was the most popular thing in the time and the Pokemon games were loved by everyone. Since this game is a remake of a classic that nearly everyone has played, it is very enjoyable to play.
The graphics are excellent and very detailed. The sound is at its best, updated music from Pokemon Red/Blue/Yellow sounds great on the GBA. Of course, the game has a lot of replay value, because if you didn't know, after you have completed the main story, you have to try and collect every single Pokemon (386 in total).
Also, if you have played Pokemon Red/Blue/Yellow, there are quite a lot of new elements put into the game so you will be surprised. To sum it up, I think that Pokemon LeafGreen is fantastic game that should not be missed by any GBA owner.