checked-part =>Endings: Get under 75% completion to get the first ending, 75%-99% for the second ending, and 100% for the final ending. ->Scanning Notes: There are several items and enemies that can only be found once during the game. If you fail to scan these when they appear, you will never be able to get a 100% completion rating. They are listed in roughly the order that they appear. ->In The Frigate (Opening of Game, before you land on Tallon IV) * Map Hologram: Scan any map hologram before you pick it up. * Zebes Research Entry: In the Biohazard Containment room on the frigate. As you can't return to the frigate in space, you can never get this again. * Parasite Queen Boss * Parasites: Found in the tunnels as you are escaping the station ->Chozo Ruins, Totem Hive (mini boss fight with Ram War Wasps to get the missile launcher) * Hive Mecha: These are protecting the first missile upgrade (scan under the water to get this entry). * Ram War Wasps: Also protecting the first missile upgrade. * Missile Blast Shield: There are a few, but there is one in the Hive Mecha room. ->Others * Locked Door: Scan in the Energy Core room. * Barbed War Wasp: In the bomb upgrade room. * Incinerator Drone: In the bomb upgrade room. * Flaagrah & Flaagrah Tentacles: Scan both the body and the tentacle of this boss to get both entries. * Stalactite: Phendrena - Scan these BEFORE you shoot them down. * Ice Shriekbat: Phendrena, in the caves. These vanish later in the game, possibly after you beat the rock creature boss OR when you get the thermal visor. Check the Ice Ruins West rooftops. * Thardus: Rock creature boss in Phendrena. * Aqua Drone: In the underwater Frigate after you get the Gravity suit. * Phazon Elite: Guarding a Chozo artifact. Looks like the Mines boss. * Elite Pirate: Like the Elite, but with guns. * Omega Pirate: Boss of the Phazon Mines. * Meta Ridley * Metroid Prime: Scan both forms of it. =>Hard Mode: Beat the game once to enable Hard Mode when starting new games. ->Image Galleries: Scan 50% of all entries to access Gallery 1. Scan 100% of all entries for Gallery 2. Beat Hard Mode for Gallery 3. Collect 100% of the items in the game to access Image Gallery 4. Note: There are 49 Missle packs (5 in each), 4 energy tanks, 4 bomb upgrades, and 4 missile upgrades (Super Missile, etc.). =>NES Metroid: Beat Metroid Fusion, then use the Metroid Fusion Connection Bonus option on the Prime menu to play the original Metroid. =>Fusion Suit: Beat Metroid Prime, then use the Metroid Fusion Connection Bonus option on the Prime menu to play the game in Samus's Fusion suit.