Metroid Walkthrough – Missile Expansions
Here you’ll find the location for every Missile Expansion in Metroid, as well as detailed explanations on how to get them and what powerups you’ll need.
Missile Expansion #1
Location: Brinstar
Requirements: None
Getting to this room and finding it is the only challenge. Carefully jump up and over and you’ll finally get to MISSILE EXPANSION #1.
Missile Expansion #2
Location: Norfair
Requirements: None
From the Brinstar elevator room, press towards the left. Keep going and you’ll see MISSILE EXPANSION #2.
Missile Expansion #3
Location: Norfair
Requirements: Bombs, Morph Ball
From Missile Expansion #2, keep going left and you’ll run into a purpley bubbley wall. Bomb the bottom and roll through to the left. Exit the bubble wall and there will be about a million Polyp’s blasting rocks at you. Go carefully but quickly, pressing left until you get through the door. In this next room, drop down and hug the righthand wall, landing on a platform with a door on it. Enter it and go through. Press towards the right and eventually you’ll grab MISSILE EXPANSION #3! Good work!
Missile Expansion #4
Location: Norfair
Requirements: Hi Jump Boots
Make your way all the way to the top of this hallway. Once you reach the roof, you’ll see a door on your left and two small platforms on your right. We’ll come back to the platforms in a second, but for now, take that door.
This room rocks. Almost right away you’ll run right into MISSILE EXPANSION #4. Keep pressing left and you’ll run into MISSILE EXPANSION #5, and if you can believe our luck, if you head left some more, MISSILE EXPANSION #6 is there too! Woohoo! Exit back into the vertical hallway you came from.
Jump on the top platform and shoot the ceiling and a tunnel will reveal itself. Do the same thing we just did; shoot, wait, blocks will respawn, and go up.
Enter the door on your right and press forward in the next room. Pretty quickly, you’ll grab MISSILE EXPANSION #7. Keep going right, being mindful to avoid that super annoying Geruta thing flying around, and grab MISSILE EXPANSION #8. Don’t stop though – bomb the wall on the right and keep rolling, bombing, rolling, bombing (what!) until you pop out on the other side. Keep pressing left and go through the blast door.
Missile Expansion #5
Location: Norfair
Requirements: Hi Jump Boots
Make your way all the way to the top of this hallway. Once you reach the roof, you’ll see a door on your left and two small platforms on your right. We’ll come back to the platforms in a second, but for now, take that door.
This room rocks. Almost right away you’ll run right into MISSILE EXPANSION #4. Keep pressing left and you’ll run into MISSILE EXPANSION #5, and if you can believe our luck, if you head left some more, MISSILE EXPANSION #6 is there too! Woohoo! Exit back into the vertical hallway you came from.
Jump on the top platform and shoot the ceiling and a tunnel will reveal itself. Do the same thing we just did; shoot, wait, blocks will respawn, and go up.
Enter the door on your right and press forward in the next room. Pretty quickly, you’ll grab MISSILE EXPANSION #7. Keep going right, being mindful to avoid that super annoying Geruta thing flying around, and grab MISSILE EXPANSION #8. Don’t stop though – bomb the wall on the right and keep rolling, bombing, rolling, bombing (what!) until you pop out on the other side. Keep pressing left and go through the blast door.
Missile Expansion #6
Location: Norfair
Requirements: Hi Jump Boots
Make your way all the way to the top of this hallway. Once you reach the roof, you’ll see a door on your left and two small platforms on your right. We’ll come back to the platforms in a second, but for now, take that door.
This room rocks. Almost right away you’ll run right into MISSILE EXPANSION #4. Keep pressing left and you’ll run into MISSILE EXPANSION #5, and if you can believe our luck, if you head left some more, MISSILE EXPANSION #6 is there too! Woohoo! Exit back into the vertical hallway you came from.
Jump on the top platform and shoot the ceiling and a tunnel will reveal itself. Do the same thing we just did; shoot, wait, blocks will respawn, and go up.
Enter the door on your right and press forward in the next room. Pretty quickly, you’ll grab MISSILE EXPANSION #7. Keep going right, being mindful to avoid that super annoying Geruta thing flying around, and grab MISSILE EXPANSION #8. Don’t stop though – bomb the wall on the right and keep rolling, bombing, rolling, bombing (what!) until you pop out on the other side. Keep pressing left and go through the blast door.
Missile Expansion #7
Location: Norfair
Requirements: Hi Jump Boots
Make your way all the way to the top of this hallway. Once you reach the roof, you’ll see a door on your left and two small platforms on your right. We’ll come back to the platforms in a second, but for now, take that door.
This room rocks. Almost right away you’ll run right into MISSILE EXPANSION #4. Keep pressing left and you’ll run into MISSILE EXPANSION #5, and if you can believe our luck, if you head left some more, MISSILE EXPANSION #6 is there too! Woohoo! Exit back into the vertical hallway you came from.
Jump on the top platform and shoot the ceiling and a tunnel will reveal itself. Do the same thing we just did; shoot, wait, blocks will respawn, and go up.
Enter the door on your right and press forward in the next room. Pretty quickly, you’ll grab MISSILE EXPANSION #7. Keep going right, being mindful to avoid that super annoying Geruta thing flying around, and grab MISSILE EXPANSION #8. Don’t stop though – bomb the wall on the right and keep rolling, bombing, rolling, bombing (what!) until you pop out on the other side. Keep pressing left and go through the blast door.
Missile Expansion #8
Location: Norfair
Requirements: Hi Jump Boots
Make your way all the way to the top of this hallway. Once you reach the roof, you’ll see a door on your left and two small platforms on your right. We’ll come back to the platforms in a second, but for now, take that door.
This room rocks. Almost right away you’ll run right into MISSILE EXPANSION #4. Keep pressing left and you’ll run into MISSILE EXPANSION #5, and if you can believe our luck, if you head left some more, MISSILE EXPANSION #6 is there too! Woohoo! Exit back into the vertical hallway you came from.
Jump on the top platform and shoot the ceiling and a tunnel will reveal itself. Do the same thing we just did; shoot, wait, blocks will respawn, and go up.
Enter the door on your right and press forward in the next room. Pretty quickly, you’ll grab MISSILE EXPANSION #7. Keep going right, being mindful to avoid that super annoying Geruta thing flying around, and grab MISSILE EXPANSION #8. Don’t stop though – bomb the wall on the right and keep rolling, bombing, rolling, bombing (what!) until you pop out on the other side. Keep pressing left and go through the blast door.
Missile Expansion #9
Location: Brinstar
Requirements: Hi Jump Boots, Ice Beam
From the Varia Suit room, drop back down to the original small room we climbed up from. Continue working your way to the right. There are a lot of enemies in pretty close quarters, but hopefully the Screw Attack is allowing some reprieve. Continue forward and grab MISSILE EXPANSION #9.
Missile Expansion #10
Location: Norfair
Requirements: Morph Ball, Bombs
From the elevator room, head right and go through the door, pressing on until you get back into the purple vertical highway. Drop down and take the very first door on your left that you see. Press forward until you get to a purple wall made of bubbles. Lay some bombs and you’ll end up rolling into a tunnel. You’ll roll through for what feels like forever, but when you pop out, freeze the Ripper and use it to jump over the edge and grab MISSILE EXPANSION #10. Press forward just a bit and you’ll also see MISSILE EXPANSION #11.
Missile Expansion #11
Location: Norfair
Requirements: Morph Ball, Bombs
From the elevator room, head right and go through the door, pressing on until you get back into the purple vertical highway. Drop down and take the very first door on your left that you see. Press forward until you get to a purple wall made of bubbles. Lay some bombs and you’ll end up rolling into a tunnel. You’ll roll through for what feels like forever, but when you pop out, freeze the Ripper and use it to jump over the edge and grab MISSILE EXPANSION #10. Press forward just a bit and you’ll also see MISSILE EXPANSION #11.
Missile Expansion #12
Location: Norfair
Requirements: Morph Ball, Bombs
Head through the blue door and press forward, avoiding the enemy fire and jumping from brick to brick until you’re through to the next room. You’ll be sandwiched between two blue doors, but don’t go through either. Rather, bomb the floor and drop down, finally going through the door on your right. Jump over and you’ll see both MISSILE EXPANSION #12 and MISSILE EXPANSION #13 sitting there for the taking.
Missile Expansion #13
Location: Norfair
Requirements: Morph Ball, Bombs
Head through the blue door and press forward, avoiding the enemy fire and jumping from brick to brick until you’re through to the next room. You’ll be sandwiched between two blue doors, but don’t go through either. Rather, bomb the floor and drop down, finally going through the door on your right. Jump over and you’ll see both MISSILE EXPANSION #12 and MISSILE EXPANSION #13 sitting there for the taking.
Missile Expansion #14
Location: Norfair
Requirements: Morph Ball, Bombs
Getting to this room and finding it is the only challenge. Press forward, bombing the green bubble wall and rolling through, and eventually, you’ll run right into MISSILE EXPANSION #14.
Missile Expansion #15
Location: Ridley’s Lair
Requirements: None
Once you’re off the elevator, drop down and head through the left door. There’s two rooms back to back that have grey tiles, so when you get to the second room, as soon as you enter the room, shoot the ceiling and jump up. Head through the blue door on the top ledge and then proceed through the hallway. It’ll be tight, but you’ll eventually run into MISSILE EXPANSION #15.
Missile Expansion #16
Location: Ridley’s Lair
Requirements: None
You’ll be at a ledge with a huge drop below you, a door across from you, and a big block in the ceiling that will make jumping across real real tough. Across is where we must go however, so try and line up your jump as best as you can. If you’re playing on the Switch, there’s no shame in using the rewind feature since this jump is super hard to nail. Once you get across, MISSILE EXPANSION #16 will be waiting for you in the next room.
Missile Expansion #17
Location: Ridley’s Lair
Requirements: None
Getting to this room and finding it is the only challenge. Head all the way to the right from the Ridley boss room, passing through one, two, three, four blue doors until you get to the vertical hallway at the end. Once you get there, drop down and get ready. Through the door on your left is where you want to go, but be warned: it’s a long hallway with a really tight walking space, so Screw Attacking is tough to pull off here. Just grind through until you get to the very end, and eventually, finally, mercifully, you’ll grab MISSILE EXPANSION #17.
Missile Expansion #18
Location: Kraid’s Lair
Requirements: Missiles
Once you’ve arrived in Kraid’s Lair, drop down and enter through the red blast door to your right. Jump over a bit and you’ll grab MISSILE EXPANSION #18.
Missile Expansion #19
Location: Kraid’s Lair
Requirements: Morph Ball, Bombs
Getting to this room and finding it is the only challenge. Drop down, and this time, take the door on the left side versus the right. Press forward until you get to a wall; you know what to do. Roll through the tunnel hidden within the wall and you’ll pop out by MISSILE EXPANSION #19.
Missile Expansion #20
Location: Kraid’s Lair
Requirements: Missiles
Getting to this room and finding it is the only challenge. Head forward a couple rooms until you get to a red blast door. Shoot it open, enter this new room and then jump ahead a bit. MISSILE EXPANSION #20 will be waiting for you!
Missile Expansion #21
Location: Kraid’s Lair
Requirements: None
Getting to this room and finding it is the only challenge. Once you’re inside, jump over and claim MISSILE EXPANSION #21.
