A secret conversation can be witnessed in Metroid Fusion. To hear it, Samus must perform a difficult series of Shinesparks in Sector 4 after she has opened Level 4 security doors, but before she obtains the Diffusion Missiles.

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 Room, located in the top right corner of Sector 2.

"During exploration of SR388, Samus is infected by an X parasite and nearly dies. A vaccine created from Metroid cells saves her, but her suit turns blue and loses most of its abilities and weapons.

The Metroid franchise has never been too cheery, but GBA's sole new Metroid entry cranked the spook factor up to eleven.