Please someone help me, I don't know how to get to the navigation room..

Once you get the gravity suit, you go tothe next room, shoot the wall on top of you until you make a hole (you should destroy the creatures first) go through it and go to the next room, after that go back and go to the left than go back so you can get the speed boost (if you want, you can do it again but from the next room so you can get a power bomb power-up by a speed-boost-jump). In the next room, it will be full of water but don't worry, you have the gravity suit.

Anyway, there will be a long room so you can get a speed boost.Once you do, jump over a hole and break through a wall (you might want to try again because it might not work all the way) than go through the hatch. If you want to, save than go to the bottom of the room and go through the left hatch.Than leave a power bomb, and destroy the missle spaces. Go up and destroy a piece of the wall on the up-right to get a poer bomb power-up and than go to the left and through the hatch. Destroy the bottom vent with a bomb and go down.

There is a power up in the other room anyway destroy the third vent and go down there, will be a passage way on the small wall you can go through as morph ball and keep going down while destroying places (use a power bomb if you are lazy) and there will be a hole, go through it and you will be in a security room unlock it and you will be able to go through the red hatches.

Go through the red hatch in the security room and keep on going through the hatches on the right, than go up and through the other red hatch.I'll continue this soon because this is really long and I cannot finish it in one day.