Metroid II: Return of Samus

After wiping out the Metroids on Zebes, Samus Aran is sent to the Metroid homeworld of SR388 to destroy every last Metroid and ensure the species could never be used again as a weapon. But the Metroids on the planet have developed into larger, more deadly forms.

You have a Metroid counter that displays the number of Metroids remaining. SR388 is a network of caverns. As you defeat Metroids, earthquakes are triggered that open up new paths, allowing you to progress.

Samus can upgrade her suit by collecting items left by the Chozo. You can save your progress at Save Points around the map.