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Main Deck[edit]

Key
L1 Lock
S or R – Security Room
L2 Lock
E – Energy Tank
L3 Lock
M – Missile Tank
L4 Lock
P – Power Bomb Tank

The numbers correspond to the list. Use the instructions in the list to get these items.

Missile Tanks[edit]

  1. To get this missile, use the elevator to the left of the tall green room before the first boss. If you haven't already, get the missiles from the nearby Data Room, then stand outside the Navigation Room and face right. Jump across to the second platform and shoot the metal door on the wall, then enter the secret tunnel. Proceed until you drop down the tall green room. The expansion is on your right. Alternately, if you missed the upgrade your first time, once you have the screw attack, start from the save station in the very center of your map and go left through several rooms and eventually into a secret hallway. Roll through the gaps to get to the pile of rubble you passed after defeating the first boss. Stand on top of it and screw attack the left side of the top of the ceiling. It'll crumble, so jump through and follow the corridor to the end. Go through the wall and jump onto the ledge above you for the expansion.
  2. From the previous missile tank, just go into the room on the left.
  3. For the third upgrade in the Main Deck, start from the Central Reactor Core in the bottom right hand side of the map. Get to the door on the top right, and go through. Kill the space pirates and shoot the floor beneath them to go down a level. Once you get to the exact middle square on the right hand side, turn into a ball and bomb the wall at the far left. Roll over to the missile expansion!
  4. In the Habitation Deck, go to the top floor either by freezing the wall-snakes or screw jumping. Destroy the floor right before the gate and go through. Head right and shoot the gate open, then head to the door. Turn around so you are facing left and run to the end of the room. You should break the blocks at the end of the room with super-speed. Jump down, shoot the gates and go right to grab the missile expansion.
  5. Head to the Navigation Room to the bottom left of the Save Station in the center of the map. From here, go left into the long hallway. Almost to the end of the room you will see a sopt where the floor is hollow. Shoot it and go directly left for a fifth missile expansion.
  6. From the elevator leading to the Breeding Environment elevators, head left all the way to the yellow room. Put your back against the wall that you need to roll under, then run while shooting like mad all the way to the left. You'll run straight over the elevator and through the wall, allowing you to take the final missile expansion on the deck.

Power Bomb Tanks[edit]

Energy Tanks[edit]