Reviewed for Big Boss Games by: TRCI sum up this game as "Thumb Exercise 101".In Metroid Zero Mission for the GBA you play as Samus going on a mission to destroy Mother Brain and all the Metroids.Metroid Zero Mission is a great remake of the original Metroid from the NES.This game has lots of cool stuff added, like a whole other level after you defeat Mother Brain.This game is very addictive. My poor thumbs hurt and I still kept on playing till the very end. (6+ hours later)The sound for this game was good, 8/10.Graphics were greatly enhanced from the original game, 8/10.Gameplay was fun and enjoyable. I only wish it was longer, 7/10.Overall, this game gets a ?my poor thumbs? 8/10.