Metroid II: Return of Samus/Phase 1

You start out next to Samus' ship. It contains an energy refill and a missile refill. You start with the power beam, long beam, morph ball(maro maro) and thirty missiles. Start by going right killing or avoiding enemies (there not that powerful). When you get to a pit jump into it. Shoot the blocks below you by jumping, aiming down, and firing. The enemies die in one hit so they shouldn't be a problem. eventually you'll be at a rock, mountain thing after falling. to the right is a strange machine known as a "save machine". To make it work just stand on it, press start and you've got your self a save state. If you head to the right then eventually you will find your road block.