Always nice to see a 3d metroid inspired game! Not sure what it had to do with the theme, but other than that I had a great time with it. The environments could use a little bit of lighting because the walls, floors and ceilings have a tendency to turn into mush sometimes, disguising any exits from the room.
Is it intended to be able to jump outside the map in the starting room? I jumped all the way up, then let myself fall into the room with the green secret behind the red wall, and couldn't get back out hahaha