Maze of the Inverted Ruins

In the first room, take the door on the left to get to a room with 4 switches. Find the wall with cracks in it, and plant a bomb to make it blow up. Use Goron Link to get the crates from there and place them on a switch. Also use Goron Link and his image to hit the biggest of the 4 switches. When you hit the last one, go past the grate that was blocking your way before. Put a bomb on the light square you see on the floor to make light shine down below, then make a right turn down to a lower level of the cave. Shine your shield on the sun block in here and walk across the lava with Goron Link to get the map. Punch all the statues in this room with Goron Link, and if they come to life, hit em again and get out of their way before they blow up. When they are all dead, a chest containing a key will appear. Take this key back upstairs, and go through the locked door in that room. In the next room, there is a key in a chest on the side ledge. After you get that, Dive down and go through the hallway into a bigger room. Jump up onto the pathway in the middle and use Link's shield to reflect light onto the mirror. Reflect it so that the mirror absorbs the light (the mirron will flash, not reflect it) for about 5 seconds, then when you stop, the mirror should shoot a beam of light. Run over and reflect it onto the sun block to get the compass. The door behind that sun block leads back to the first room. Go back to where the mirror is and cross the little pathway to a locked door (you got the key recently). In the next room, punch away the pillar in the middle with Goron Link. Use the same technique you did before with the mirror to get rid of the sun block against the right wall. There is a chest there containing a fairy. Next part can be annoying. You havta reflect the light onto one mirror for a really long period of time, then reflect the light that one gives off onto another mirror, and then finaly the light that one gives off onto the sun block. The black bug monsters in the room will keep regerating to make things more difficult as well. You can block them with your shield to buy time. Go through the door when you finish. Launch up with Deku Link in the next room, and guide him to the guests of air to extend the time you can glide for. There is a chest near the start of the glide that has a fairy, on the platform with rupees. There is a chest on fire that has a fairy in it, and I think you need to roll across the lava and hit the switch with Goron Link for it to open. Not too sure. In the next room, you'll fight a mini-boss. This boss can't hit you as long as you are blocking, but you will never seem to beable to hit him either. When he leaps at you, move out of the way and he will dissapear, then come down on your head. Take a short step away when he comes down and slash him. Eventually, he will escape, and a chest containing the Light Arrows will appear. Go through the door and jump up onto the beam to get across. There is a masked bug in the way, but you can take him out easily with a bomb and a slash. Just block him with the shield until the bomb goes off. In the next room, there is an eye creature to fight. Just block his attacks and hit him in the eye with an arrow when it is yellow (right after you block his attack). It Helps alot if you Z-target him. You will be back in the first room after this, and can go back in time if you want. You won't lose the map or compass, and everything else of importance that you have done (except the faries) has already been taken care of and is not needed to be done again. Either way, next thing to do is go back outside, and jump over to the block closest to the dungeon. Shoot a light arrow at the red gem on the wall and the dungeon will flip over. Go back in and take the door on the right first. Shoot the sun block with a light arrow, then Glide across, then turn and hit the frozen eye with a fire arrow. Hookshot up to the chest that appears for a fairy. There is another fairy you can get by hitting the sun emblem in the first room and opening a chest. In the room on the right, use Deku link and get launched by the air hole on the right. Fly up to a platform, then Glide over the the little walkway in the middle of the room. Kill the masked rat, and walk through a hallway until you see a switch. Hit it, then go back and grab the chest that appears for a key. Take the other air hole on the left to launch up to a locked door. In this room, shoot the gem to turn right-side up, then walk to the little platform in the lava and shoot it again. Walk through the door. You must do the same general thing in the next room. Reverse the room, then push the block over a few squares so it will fall in the middle-right, turn it back, then push the block over to the other side of the room, Reverse, push it as far as it will go agaisnt the slightly raised floor, reverse, then push it on the switch and jump up to the door. In the next room, you need to fight the game's favorite wizard mini-boss again. Let him have it, then Hookshot up to the chest that appears and go through the door. Launch across the next room with Deku Link, and bottle a poe if you really need it. In the next room, make the spiked balls bash each other with the Hookshot, then glise across to the middle section, and Hookshot the chest on the ceiling by the door. Run past the blue skulls, trying not to get hit, beacause they will lock out your sword. The next room has a combination vampire bat/grim reaper mini-boss. He can take off your life very very quickly if you aren't careful. You need to hit him with a light arrow to get rid of some of the bats, then slash him with your sword. His attacks are very hard to dodge, try wearing the bunny mask or using backflips. When you beat him you will get the boss key. Go back 3 rooms, to the room with the poes. Use Deku Link right when you enter (coming from the mini-boss) and go left to a gap in the wall. Run past all the knights and hit a switch to make a chest containing a key appear. Get it, then go back towards the mini-boss 1 room. Right when you enter, look to your right and follow the path. Hit the switch and Hookshot the chest that appears. Follow that path and unlock the locked door. Defeat the giant eye monster in the next room, just like the last one you killed, then get the chest he leaves for a new mask that you can't seem to use. In the next room, Hit the switch, and Hookshot to the chest that appears. Hit the Hookshot target on the ceiling to get over the spinning spiked bar, and enter the door. Jump down the pit. Boss: Twin Mold Use the mask when the fight starts and you will become giant. This is a pretty easy, but cool nonetheless fight, as long as you have some magic refills with you. I recomend bringing 2 or 3 magic refills, and some faries. You can just bring all blue potions if you want, too. Back to the boss, you'll need to slash either of them as Giant Link in the head or the tail. 4-6 slashes will kill each one. If you run out of magic, you can try to find some in the desert using the Bunny Hood or Goron Link to stay ahead of the molds, but it is very hard to find a magic vial. Also, don't accidently wander too far from the middle or you will be kicked outside back to the entrance of the upside-down Rockvale Dungeon. When you win, you can grab the last guardian mask, as well as another heart container. Getting all the fairies for this dungeon and brining them back to the fairy spring by the musical house will get you a powerful 2-handed sword. You cannot use your shield if you are using this sword though, so only use it when you know you won't need to defend, especally since the Mirror Shield is several times more powerful than the first and can block almost anything within reason.