Metroid

After taking the elevator down, Samus will be in a gray room with blue platforms leading downwards. Have your Ice-Beam ready because the metroids are very quick. Its best to proceed with caution, that way the metroids can get stuck underneath platforms. Drop down and freeze them. Once frozen, blast them with a few missles. Metroids will always leave bonuses and they are the best in the game. If a metroid latches on to Samus, curl up into a sphere and plant some bombs, otherwise they will drain your health quickly. Metroids may be scary at first, but after killing a few, you got their number. This whole area is one path, there are no forks in the road. This path leads straight to the final boss, Mother Brain. In the next room, keep jumping and firing you Ice-Beam. Lead your shots to quickly freeze the metroids. At the end of the room is a door that will open with five missles. The next room will be a zig zag pattern downward, avoid the orange circles and freeze any metroids. At the very bottom, a trio of metroids will ambush you. Quickly freeze them and kill them off with your missles. You don't want to run the risk of the metroids defrosting and attack you while you try to blast the door open. This door will lead you to a room with eight metroids, proceed with caution. You will want to take them all out to refill all your health and missles.