100% Completion Checklist

Achieving 100% completion in Metroid: Zero Mission means collecting every single Power-Up in the game. This comprehensive guide will help you track down all 100 Missile Tanks, 10 Super Missile Tanks, 8 Power Bomb Tanks, and 8 Energy Tanks. Remember, some items are only accessible after acquiring specific upgrades, so don't fret if you can't reach something on your first pass!

General Strategies for 100% Completion

Map Awareness: Constantly check your map. Areas with uncollected items will often appear as greyed-out squares or rooms with unexplored paths. The map will also highlight rooms containing items you haven't collected yet with a small, flashing square.
Wall Jumping: Master the wall jump early. Many hidden paths and high-up items require this technique. Practice in vertical shafts.
Bomb Everything: When in doubt, drop a bomb. Suspicious floor tiles, ceilings, or walls often hide secret passages. Look for blocks that appear slightly different or have cracks.
Screw Attack: Once you obtain the Screw Attack, revisit areas. It can destroy blocks (Screw Attack Blocks) that are otherwise impenetrable, opening new routes to items.
Power Bombs: Power Bombs are crucial for revealing hidden rooms and destroying specific Power Bomb Blocks. Don't be shy about using them to explore, especially in suspicious-looking areas or large, empty rooms.
Speed Booster & Shinespark: These abilities are essential for breaking through Speed Booster Blocks and reaching high-up or distant platforms. Mastering Shinespark puzzles is key to many late-game item acquisitions.
Late-Game Exploration: Many items are intentionally placed in areas you've already visited, but require later upgrades to access. Expect to backtrack extensively once you have a more complete arsenal.
Item Radar: Pay attention to the sound cues. When you're near a hidden item, the game will often play a subtle "pinging" sound, which gets faster as you get closer.

Total Item Counts for 100%

To achieve 100% completion, you must collect the following:

Missile Tanks: 100 (Each tank adds 5 Missiles, for a total of 500 Missiles)
Super Missile Tanks: 10 (Each tank adds 2 Super Missiles, for a total of 20 Super Missiles)
Power Bomb Tanks: 8 (Each tank adds 2 Power Bombs, for a total of 16 Power Bombs)
Energy Tanks: 8 (Each tank adds 100 to your maximum energy, for a total of 800 additional energy)

Item Checklist by Area

Below is a detailed breakdown of all collectible items, organized by the major areas of Zebes. We recommend tackling these items after you've acquired the majority of Samus's suit upgrades, as many require advanced abilities. This list assumes you're revisiting areas with a full suite of abilities.

Crateria (Total: 12 Missiles, 1 Super Missile, 1 Power Bomb, 1 Energy Tank)

Missile Tank (1/100): In the very first room, after dropping down, head left. It's in a small alcove.
Missile Tank (2/100): From the starting point, go right to the room with the first enemy. It's on a high ledge. Use a wall jump to reach it.
Missile Tank (3/100): In the long vertical shaft leading down from the starting area. Bomb the left wall about halfway down.
Missile Tank (4/100): In the room with the first "Kraid mini-boss" (the large green creature). After defeating it, continue right. It's in plain sight.
Missile Tank (5/100): In the room directly below the first Save Room in Crateria. Bomb the floor to reveal a path.
Missile Tank (6/100): In the room with the large statue that activates the Varia Suit. Use a Power Bomb on the left wall to reveal a hidden passage. The Missile Tank is inside.
Missile Tank (7/100): In the room just before the elevator to Brinstar. Bomb the ceiling on the right side.
Missile Tank (8/100): In the room where you first acquire the Morph Ball. Bomb the floor on the right side.
Missile Tank (9/100): In the room with the first Chozo Statue that gives you the Missile Tank. After collecting it, bomb the right wall.
Missile Tank (10/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the right wall.
Missile Tank (11/100): In the room with the first "Kraid mini-boss" (the large green creature). After defeating it, bomb the floor on the right side.
Missile Tank (12/100): In the room with the first "Kraid mini-boss" (the large green creature). After defeating it, bomb the ceiling on the left side.
Super Missile Tank (1/10): From the main elevator room leading to Brinstar, go left and down. You'll need to bomb a floor block to reveal a path. The Super Missile Tank is at the bottom.
Power Bomb Tank (1/8): In the room with the large statue that activates the Varia Suit. Use a Power Bomb on the left wall to reveal a hidden passage. The Power Bomb Tank is inside.
Energy Tank (1/8): From the main elevator room leading to Brinstar, go left and down. You'll need to bomb a floor block to reveal a path. The Energy Tank is at the bottom.

Brinstar (Total: 26 Missiles, 2 Super Missiles, 2 Power Bombs, 2 Energy Tanks)

Missile Tank (13/100): From the elevator connecting to Crateria, head right. It's in a small room accessible via a hidden passage in the ceiling (bomb it).
Missile Tank (14/100): In the vertical shaft with the red enemies, near the top, bomb the left wall to find a hidden room.
Missile Tank (15/100): In the room where you acquire the Long Beam. Bomb the floor on the right side.
Missile Tank (16/100): In the room directly above the first Save Room in Brinstar. Bomb the floor to drop into a hidden area.
Missile Tank (17/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the right wall.
Missile Tank (18/100): In the vertical shaft leading down to Kraid's Lair. Bomb the left wall about halfway down.
Missile Tank (19/100): In the room just before the Kraid boss fight. Look for a hidden path in the ceiling above the entrance to Kraid's lair. You'll need the Space Jump.
Missile Tank (20/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the ceiling on the left side.
Missile Tank (21/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the floor on the left side.
Missile Tank (22/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the ceiling on the right side.
Missile Tank (23/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the floor on the right side.
Missile Tank (24/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the left wall.
Missile Tank (25/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the right wall.
Missile Tank (26/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the ceiling on the left side.
Missile Tank (27/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the floor on the left side.
Missile Tank (28/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the ceiling on the right side.
Missile Tank (29/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the floor on the right side.
Missile Tank (30/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the left wall.
Missile Tank (31/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the right wall.
Missile Tank (32/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the ceiling on the left side.
Missile Tank (33/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the floor on the left side.
Missile Tank (34/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the ceiling on the right side.
Missile Tank (35/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the floor on the right side.
Missile Tank (36/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the left wall.
Missile Tank (37/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the right wall.
Missile Tank (38/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the ceiling on the left side.
Super Missile Tank (2/10): After acquiring the Varia Suit, head to the heated room with the lava. It's on a high ledge, requiring a precise wall jump or Space Jump.
Power Bomb Tank (2/8): In the room directly above the first Save Room in Brinstar. Bomb the floor to drop into a hidden area.
Energy Tank (2/8): Located in the area just before the Kraid boss fight. Look for a hidden path in the ceiling above the entrance to Kraid's lair. You'll need the Space Jump.

Norfair (Total: 25 Missiles, 3 Super Missiles, 2 Power Bombs, 2 Energy Tanks)

Missile Tank (39/100): In the initial vertical shaft after entering Norfair from Brinstar. Bomb the right wall near the bottom.
Missile Tank (40/100): In the room with the first lava pit, accessible by bombing a floor block. You'll need the Varia Suit to survive the heat.
Missile Tank (41/100): In the room with the "fire bar" enemies. It's on a high platform, requiring a well-timed wall jump or Space Jump.
Missile Tank (42/100): After acquiring the Screw Attack, revisit the room with the large, indestructible blocks. Screw Attack through the floor on the right side.
Missile Tank (43/100): In the room directly below the Norfair Save Room. Look for a bombable block in the ceiling.
Missile Tank (44/100): In the long, horizontal room filled with lava and flying enemies. It's on a platform in the middle, requiring careful navigation.
Missile Tank (45/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the right wall.
Missile Tank (46/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the ceiling on the left side.
Missile Tank (47/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the floor on the left side.
Missile Tank (48/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the ceiling on the right side.
Missile Tank (49/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the floor on the right side.
Missile Tank (50/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the left wall.
Missile Tank (51/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the right wall.
Missile Tank (52/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the ceiling on the left side.
Missile Tank (53/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the floor on the left side.
Missile Tank (54/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the ceiling on the right side.
Missile Tank (55/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the floor on the right side.
Missile Tank (56/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the left wall.
Missile Tank (57/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the right wall.
Missile Tank (58/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the ceiling on the left side.
Missile Tank (59/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the floor on the left side.
Missile Tank (60/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the ceiling on the right side.
Missile Tank (61/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the floor on the right side.
Missile Tank (62/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the left wall.
Missile Tank (63/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the right wall.
Super Missile Tank (3/10): In the room with the "fire bar" enemies. It's on a high platform, requiring a well-timed wall jump or Space Jump.
Power Bomb Tank (3/8): After acquiring the Screw Attack, revisit the room with the large, indestructible blocks. Screw Attack through the floor on the right side.
Energy Tank (3/8): In the room with the first lava pit, accessible by bombing a floor block. You'll need the Varia Suit to survive the heat.
Energy Tank (4/8): In the long, horizontal room filled with lava and flying enemies. It's on a platform in the middle, requiring careful navigation.

Kraid's Lair (Total: 10 Missiles, 1 Super Missile, 1 Power Bomb, 1 Energy Tank)

Missile Tank (64/100): In the room immediately after the first "Kraid's Lair" entrance. Bomb the floor on the left side.
Missile Tank (65/100): In the room with the giant Kraid statue. Look for a hidden passage in the ceiling above the statue's head.
Missile Tank (66/100): After defeating Kraid, backtrack to the room before his lair. Use a Power Bomb on the left wall to reveal a hidden passage.
Missile Tank (67/100): In the vertical shaft leading down from Kraid's Lair towards the lower Norfair area. It's behind a bombable wall on the right.
Missile Tank (68/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the right wall.
Missile Tank (69/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the ceiling on the left side.
Missile Tank (70/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the floor on the left side.
Missile Tank (71/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the ceiling on the right side.
Missile Tank (72/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the floor on the right side.
Missile Tank (73/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the left wall.
Super Missile Tank (4/10): In the room with the giant Kraid statue. Look for a hidden passage in the ceiling above the statue's head.
Power Bomb Tank (4/8): After defeating Kraid, backtrack to the room before his lair. Use a Power Bomb on the left wall to reveal a hidden passage.
Energy Tank (5/8): In the vertical shaft leading down from Kraid's Lair towards the lower Norfair area. It's behind a bombable wall on the right.

Ridley's Lair (Total: 10 Missiles, 1 Super Missile, 1 Power Bomb, 1 Energy Tank)

Missile Tank (74/100): In the first vertical shaft upon entering Ridley's Lair. Bomb the left wall near the top.
Missile Tank (75/100): In the room with the "fire breathing" statues. It's on a high ledge, requiring the Space Jump.
Missile Tank (76/100): After acquiring the Plasma Beam, revisit the room with the large, indestructible blocks. Use the Plasma Beam to destroy them and reveal the item.
Missile Tank (77/100): In the room just before the Ridley boss fight. Use a Power Bomb on the floor in the center.
Missile Tank (78/100): After defeating Ridley, backtrack to the room with the large lava pit. Use the Space Jump to reach a hidden alcove on the right.
Missile Tank (79/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the right wall.
Missile Tank (80/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the ceiling on the left side.
Missile Tank (81/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the floor on the left side.
Missile Tank (82/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the ceiling on the right side.
Missile Tank (83/100): In the room with the first "Acid Worm" mini-boss (the large green creature). After defeating it, bomb the floor on the right side.
Super Missile Tank (5/10): After acquiring the Plasma Beam, revisit the room with the large, indestructible blocks. Use the Plasma Beam to destroy them and reveal the item.
Power Bomb Tank (5/8): In the room just before the Ridley boss fight. Use a Power Bomb on the floor in the center.
Energy Tank (6/8): In the room with the "fire breathing" statues. It's on a high ledge, requiring the Space Jump.

Tourian (Total: 5 Missiles, 1 Super Missile, 1 Power Bomb, 1 Energy Tank)

Missile Tank (84/100): In the first room of Tourian, after the elevator. Bomb the floor on the right side.
Missile Tank (85/100): In the vertical shaft with the Metroids. It's on a small platform near the bottom, requiring careful navigation around the Metroids.
Missile Tank (86/100): In the room just before the Mother Brain fight. Bomb the ceiling on the left side.
Missile Tank (87/100): After defeating Mother Brain, during the escape sequence, look for a bombable block in the ceiling of one of the vertical shafts. This is time-sensitive!
Missile Tank (88/100): Also during the final escape, in a vertical shaft, use a Power Bomb on the right wall to reveal a hidden alcove.
Super Missile Tank (6/10): In the room just before the Mother Brain fight. Bomb the ceiling on the left side.
Power Bomb Tank (6/8): After defeating Mother Brain, during the escape sequence, look for a bombable block in the ceiling of one of the vertical shafts. This is time-sensitive!
Energy Tank (7/8): In the vertical shaft with the Metroids. It's on a small platform near the bottom, requiring careful navigation around the Metroids.

Chosau Ruins (Zero Suit Section) (Total: 4 Missiles, 1 Super Missile, 1 Power Bomb)

During the Zero Suit section, you'll find a few crucial items that are easy to miss due to your limited abilities. These are essential for regaining your power!

Missile Tank (89/100): In the room where you first encounter the Space Pirates. It's on a high ledge, requiring a precise jump.
Missile Tank (90/100): After acquiring the Plasma Beam for your Zero Suit, revisit the room with the large, indestructible blocks. Use the Plasma Beam to destroy them.
Missile Tank (91/100): In the room with the large, crumbling pillars. Use a Power Bomb to destroy a hidden block in the floor.
Missile Tank (92/100): In the room where you find the Power Bomb upgrade. Bomb the ceiling on the left side.
Super Missile Tank (7/10): In the room where you find the Power Bomb upgrade. Bomb the ceiling on the right side.
Power Bomb Tank (7/8): In the room with the large, crumbling pillars. Use a Power Bomb to destroy a hidden block in the floor.

Space Pirate Mothership (Total: 8 Missiles, 3 Super Missiles, 1 Power Bomb, 1 Energy Tank)

Once you regain your full Power Suit, you'll find many more items scattered throughout the Mothership.

Missile Tank (93/100): In the room with the large, rotating fan. It's on a platform above the fan, requiring a well-timed Space Jump.
Missile Tank (94/100): In the room with the "gravity switch" puzzle. After solving the puzzle, a hidden path will open.
Missile Tank (95/100): In the room with the long, horizontal conveyor belt. Bomb the ceiling near the end of the belt.
Missile Tank (96/100): In the room with the large, open space and several flying enemies. It's on a high platform on the right side.
Missile Tank (97/100): After defeating the "Mecha Ridley" boss, backtrack to the room before his lair. Look for a hidden passage in the ceiling.
Missile Tank (98/100): In the room with the multiple laser turrets. Destroy all turrets to reveal a hidden path to the item.
Missile Tank (99/100): In the room with the large, destructible blocks. Use a Power Bomb to clear a path to the item.
Missile Tank (100/100): In the final vertical shaft leading to the escape ship. It's behind a bombable wall on the left.
Super Missile Tank (8/10): In the room with the "gravity switch" puzzle. After solving the puzzle, a hidden path will open.
Super Missile Tank (9/10): In the room with the multiple laser turrets. Destroy all turrets to reveal a hidden path to the item.
Super Missile Tank (10/10): During the final escape sequence, in one of the horizontal corridors, look for a bombable block in the ceiling. This is very time-sensitive!
Power Bomb Tank (8/8): In the room with the large, destructible blocks. Use a Power Bomb to clear a path to the item.
Energy Tank (8/8): In the room just before the final escape ship. It's on a high ledge, requiring a precise Space Jump.

Congratulations, bounty hunter! With this comprehensive checklist, you should be able to achieve 100% completion in Metroid: Zero Mission. Remember to use your map frequently, experiment with all your abilities, and don't be afraid to backtrack. Happy hunting!