Beat the game with 100% Item Completion
Explore Bottle Ship After Finishing the Game
You have to beat the final story boss.
Beat the game to unlock Theater Mode in the main menu. In this mode you can watch all the game's cutscenes in one place, linked together with recorded gameplay footage.
Chapters 1-26 - Beat the Metroid Queen
Chapters 27-30 - Beat the Epilogue, escape the Bottle Ship
Item Locations and Completion Percentage
After you beat the final boss and see the game credits roll, return to the Bottle Ship and your map will be updated with all item locations. You'll also get a completion percentage based on your collected items.
Secret Morph Ball Overload Attack
If you charge your Beam and turn into the Morph Ball before releasing it you can drop 5 Normal Bombs at once. Also, if you charge while in Morph Ball you can shoot a Charged Beam imediately when you turn back into your Suit