100% item completion, view first ten Chozo Memories.
Elon Reserve Tank & Metroid II Art Gallery
Scan the Samus Amiibo from the Metroid series.
Energy Reserve Tank & Sound Test
Scan the Zero Suit Samus Amiibo from the Super Smash Bros. Series.
Gravity Suit Pose
Finish the game in over 8 hours.
Hard Mode
After you've beaten the game, you'll unlock Hard Mode, which you can select when starting a new save.
Metroid In Samus's Ship
After you've beaten the game, the menu screen will display Samus sitting in her ship as usual. However, she'll now be joined by the Metroid she saved at the end of the game.
Metroid Marker & Fusion Suit
Scan the Metroid Amiibo.
Missile Reserve Tank & Concept Art Gallery
Scan the Samus Amiibo from the Super Smash Bros. Series.
No Armor
Finish the game under 4 hours.
No Helmet
Finish the game between 4 and 8 hours.
Staff Credits
After you've beaten the game, you can view the Staff Credits again at any time. It's available under the Options screen in the main menu.