Hidden throughout the game are 12 Zodiac Chambers that contain special weapons. These weapons cannot be unlocked until you have found the Chamber and taken it's treasure. There are 9 types of weapons and 3 Powers.
Sagittarius Bow - Zodiac Chamber 2:
When you go down the ramp (Right before you meet Magnus), there is a tapestry decorating one of the bends. Run through it.
Taurus Arm - Zodiac Chamber 4:
In the room with the narrow path and two scythes, drop down to the Clubberskull pit. One of the holes is glowing. Jump into that hole.
Gemini Orbitars - Zodiac Chamber 6:
If you're lucky enough to fight Dark Pit in the underground temple, go check the temple's corners after defeating him.
Cancer Claws - Zodiac Chamber 8:
In the constellation storage room, after defeating the Snong, don't take the Jump Pad. Take the dead end path to the right and jump down.
Leo Cannon - Zodiac Chamber 10:
After sinking the pedestal into the lava (or jumping over it completely) go into the next room and follow the left wall.
Virgo Palm - Zodiac Chamber 12:
There's an area that gives you an elevator after killing some monsters. Look towards it. A second elevator is behind you. Take that elevator.
Libra Sponge (Power) - Zodiac Chamber 14:
Once you get to the boss door, go in the opposite direction and you'll find an electric door. Get up close to the door and dodge through.
Scorpio Staff - Zodiac Chamber 16:
When you get the Aether Ring and float down an opening, look for an opening. Shoot the switch in that opening and you'll be able to enter.
Aries Armor (Power) - Zodiac Chamber 18:
At the Hot Spring area with the Souflee, go to the left.
Capricorn Club - Zodiac Chamber 20:
When you get to the area that needs a key, go inside and take a right. Open the jail cell in the back left and go through the hidden wall.
Aquarius Blade - Zodiac Chamber 23:
When you get to your first grind rail that you have to jump, take it back in the opposite direction and ride it to the Chamber.
Pisces Heal (Power) - Zodiac Chamber 24:
When you take your first elevator to begin the trials, go down the other flight of stairs to find the Chamber.
Added by: Sanzano Aug 8th 2012, ID#407