Unlockable Multiplayer Bonuses

Sanctuary Soundtrack:
Restore Energy to Sanctuary Temple and talk to U-Mos

Torvus Bog Soundtrack:
Restore Energy to Torvus Temple and talk to U-Mos

Pirate Fear Soundtrack:
Restore Energy to Agon Temple and talk to U-Mos

Luminoth Soundtrack:
Talk to U-Mos for the first time
Pipeline Arena:
Restore Energy to Torvus Temple and talk to U-Mos

Spires Arena:
Restore Energy to Sanctuary Temple and talk to U-Mos
Dark Echoes Soundtrack:
Complete the Game

Darkness Soundtrack:
Complete the Game
Hard Mode:
Beat the game

Galleries

Promotional Gallery:
40% of Logbook Scans
Character Gallery:
60% of Logbook Scans
Creature Gallery:
80% of Logbook Scans
Boss Gallery:
100% of Logbook Scans

Dark Samus Ending:
100% of Items Obtained
Storyboard Gallery:
Complete game on Hard Mode

Rough Sketch Gallery:
Complete game on Normal Mode