Boss Gallery / 100% of Logbook Scans
Character Gallery: / 60% of Logbook Scans
Creature Gallery: / 80% of Logbook Scans
Dark Samus Ending: / 100% of Items Obtained
Promotional Gallery: / 40% of Logbook Scans
Rough Sketch Gallery: / Complete game on Normal Mode
Samus Body Suit Cinema / 75% of Items Obtained
Storyboard Gallery: / Complete game on Hard Mode
Hard Mode: / Beat the game
Unlockable Multiplayer Bonuses
Dark Echoes Soundtrack / Complete the Game
Darkness Soundtrack / Complete the Game
Luminoth Soundtrack / Restore Energy to Agon Temple and talk to U-Mos
Pipeline Arena / Restore Energy to Torvus Temple and talk to U-Mos
Pirate Fear Soundtrack / Restore Energy to Agon Temple and talk to U-Mos
Sanctuary Soundtrack / Restore Energy to Sanctuary Temple and talk to U-Mos
Spires Arena / Restore Energy to Sanctuary Temple and talk to U-Mos
Torvus Bog Soundtrack / Restore Energy to Torvus Temple and talk to U-Mos
Glitches
101% Items: In GMFC Compound, your supposed to witness a cutscene and then blast a yellow crate and recieve the Missile Launcher. However, right before the "invisible wall" leading to activate it, there is a boot shaped formation. By jumping onto it, you will be propelled onto the ledge above, allowing you to skip the activation of the cutscene and go straight to the Missile Launcher. After getting it and then activating the cutscene, glitchingly the yellow crate reapperars, with ANOTHER Missile Launcher. Geting this 1, and the remaining 99 items in the game will allow you to have 101% items at the end of the game (your Missile count doesn't go above 255 however).
Broken Sonic Locks in Main Research: After you fight Dark Samus in Sanctuary Fortress and you acquire the Echo Visor, you have to go to a room called Main Research. When you go there your objective is to deactivate 3 sonic locks in the room. However, if you destroy 2 or less and you leave the room, when you come back and destroy the remaining locks the door thats supposed to open doesn't open. The door will never open so your game is stuck with no way to progress. This glitch wrecks your game.
Floaty Jump: This glitch is found in the Chykka boss fight. When breaking the last strand off the cocoon, make sure you are in the water. If you are in the water when you break the last strand, after the cutscene, you will be on land, but when you jump you get an anti-gravity lift that lets you go incredibly far, and incredibly high. The game still thinks you are in the water so your jumps are like if you were in water. The disadvantage is, if you touch any water, the effect wears off. Apparently, you must be in dark water when a cutscene occurs to activate this, therefore, the Chykka battle is the only place to activate this.
Jump Guardian Trick: After entering the judgement pit, don't enter the light sphere in the middle yet. Instead go around the room and jump up to a light beacon to the right of the door, and aim towards the green door across the room. Then begin firing in front of the Luminoth statue's face and, if done correctly, your shots should be stopped in midair by the jump guardian (he's invisible until the fight begins). You can shoot him as much as you like and when you start the fight he will start with that much damage! (you can't kill him before the fight begins but you can get him to the point where 1 shot kills)
Secrets
A Metroid's worst enemy, doors: This is a very simple way to despose of metriods, and you waist no beam ammo. All you need is the power beam, and a door. Of course, the metriod helps too. First, shoot the metroid with the beam, to make it go after you. Face it, with your back to the door. Wait, just wait. When the metroid charges you, dodge to the side. Hint, you can only dodge while locked on. If the metroid hits the door or near it, it will explode.