Blue Hatches (Security Level 1) can be found throughout the Biologic Space Laboratories research station in Metroid Fusion. They are mostly in Sector 2 and are the blue colored doors. To open them, Samus must find the Level 1 Security Station, located in the top right corner of Sector 2. Once Samus has unlocked the doors, she can freely pass through them like normal doors by shooting them. After unlocking the blue hatches, Adam and Samus quickly learn that unlocking hatches allow access to other sectors for the X. In this case, sectors 4 and 3.