Unfortunately, there is not a secret ending for Metroid Dread, though many had hoped there would be. The conclusion of the title brings the decades-long arc to a pretty satisfactory ending, leading many to wonder where the franchise may go from here (and leaving hopes for a secret ending).

That being said, if players wish to unlock all of the gallery items, they will need to complete the game more than once in different modes.

There are seven different art gallery items players can unlock:

• Metroid: Zero Mission - Complete the game on Normal Mode
• Metroid: Samus Returns - Complete the game on Normal Mode in less than 8 hours
• Super Metroid - Complete the game on Normal Mode in less than 4 hours
• Metroid: Other M - Complete the game on Hard Mode
• Metroid Fusion - Complete the game on Hard Mode in less than 8 hours
• Metroid Dread - Complete the game on Hard Mode in less than 4 hours
• Zero Suit Samus - Unlock all previous art gallery items

Once a player unlocks all of these items, they will have reached 100% completion of the game.

It's unclear just what direction the Metroid games will take going forward, now that many of Samus' original foes have been defeated — though the developers have said that this is not the end of Samus' time with Nintendo.