Walkthrough: After jumping through the hole after defeating the ten normal Metroids, you will enter what appears to be the final battle with the final Metroid, Queen Metroid that is. She will be the toughest Metroid you have faced yet, being one of the more difficult to defeat Bosses found in the entire game. Hopefully you have plenty of health, Missiles, and ammunition, because you're definitely going to need it. Need specific help defeating Queen Metroid? Then check out our guide on How To Defeat Boss Metroid Queen! Good Luck!