Fatal Insanity's totally insane guide

A few reminders:
Though there are a couple exceptions (Which will be outlined in this guide)  Most boss battles are marked in dungeons by either a character or object.  Be sure to use Gin & Tonics and Tinctures before pressing X to talk to anyone or investigate anything.

Each time a new chapter starts, you may have an odd formation to your party, so be sure to check and see if it's to your liking before getting into any fights.

Without further ado, here's the guide:

Chapter 1:
This dungeon is fairly straightforward.  The first level is just a spiral going counterclockwise, with a fairly spacious room with a staircase going up and a G&T in a treasure chest.
Once on the second floor, immediately look to your left and you'll find a Tincture in a chest.  Floor 2 is a series of chambers linked by passageways.  In the second to last chamber you'll find a chest with 1000 Gold and a save spot.  Power up your characters here, not long past the door is your first boss, the Death Knight.
The DK is a pussy so long as he doesn't get a chance to hit you with any of his primary attacks.  Tidane is the weakest defensively in this fight, so be carefull to keep his HP high.  WARNING: If anyone dies in this fight, they will be dead for the rest of the game.

Chapter 2:
In this chapter you start in a small town.  Check your party formation and feel free to save the game at the inn and buy some G&T's and Tinctures at the shop.  The people here are also kind of friendly, so go ahead and talk to all of them.
When you leave town, look around until you find a structure on top of as hill, that's the Goblin Caves, where you need to be.
Once inside, stay to the left for goodies 'n gold, stay to the right to  save a few minutes.
The old man is the signal for the chapter 2 boss, the Stoner Dragon, a fairly easy boss.

Chapter 3:
This chapter starts in an Inn in the Town of Gean.  Save and go outside.  Feel free to explore the town a bit, but it's not necessary, except to buy some G&T's and Tincs.
Once you leave town you'll see a tower directly ahead, that's your destination.  Follow the river west untill you find a land bridge, then backtrack to the tower's front door.
On the first level of the tower, you'll find a save point first thing.  Use it and go ahead.  Stay with the wall to the right for a quick and fairly painless trip up, or if the call for adventure and treasure is just too much to resist, stick to the left, which circles around the entire structure and leads to stairs heading downward.
Level B1 is basically a big chamber with slightly tougher baddies and another set of stairs down back-to-back with the stairs up.  B2 is small, simple and has some gold and a G&T.
Level 2 is extremely simple. Snag some easy money behind the stairway down and follow the narrow path to the left, because the wide path goes to the same place in more time, and don't bother with the first door to your left, it goes to an empty room.  The second door leads to the stairs up.
The third floor can leave your head spinning if you're not carefull.  If speed is your primary concern, stick to the wall to your left like glue and it'll take you straight to the stairs up.  For treasure, go to the right, around behind the stairs and follow the wall to your right, which will take you not only to the two treasures in this dungeon, but also to the stairs in a bit longer, but more profittable, time.
Floor number 4 is a fairly short and easy floor if you're pressed for time.  Just stay right and you'll find  a Yagermeister and the stairs up.  If you want to explore some more, there's a chest full of gold elsewhere on this level.
Floor five is the final area, and it's real easy, just a wide open area with a pedestal with an oversized gold ring on it.  Heal before examining the ring (It's a touch event BTW), though, as another boss fight is surely on the way.  The trolls are tougher than any other creature you've met yet.  A lot tougher.  Put Yunoa in the back row and use your special attacks on them, because normal attacks won't do much damage at all and their regular attack is deadly.

Chapter 4:
In this chapter you not only have to deal with the usual dangers of dungeon delving, you also have to sneak past ninjas.  If you're spotted by a ninja, a fight begins, and you gain nothing for fighting them.  If you sneak up behind them and talk to them, a storyteller sequence begins, and everything is set as though you had fought them.

The first floor, or rather fourth, as you're working your way down the tower, places you in a large room with a save point and two ways out.  If you take the left route, you can catch the waiting ninja off guard, or you can fight him, if you take the left route.  The rest of level 4 is fairly straightforward.  Don't be bashful about fighting any of the monsters, as you will need the experience for the boss of this dungeon.
Maps for levels 1-3 are included in the file titled "Tower of Pron".
When you see the exit of the dungeon, heal up, because the boss can be very dangerous.  It's a high level bandit.  You can either use special attacks that do more damage, or your regular attack with a chance of an instant kill.  It's up to you, bot don't expect this to be easy.

Chapter 5:
This chapter starts in a bar in the town of Mew.  As usual, feel free talk to the two people in town (The bartender and the rich lady in the mansion), and be sure to stock up on G&T and Tinctures, and save.
Once outside, go north to Jack's Hut, where you will gain the power of Bourbon.  Go west from Jack's Hut to find a teleporter to the island where you will find Bud's Hut, and accquire the power of Beer.  Teleport back to the mainland and return to Jack's Hut, then head north to the Earth Shrine.
Once inside the Earth Shrine, save and go through the door.  In the chamber beyond you will find Scotch.  After returning to the main area, go east, where you will find some treasure, then go back and take the final passage, which leads to the second floor (You can probably take this passageway first, but a couple extra fights won't hurt in the least, considering you're going solo on this one).
The second level is even simpler than the first.  Simply follow the passage until it branches to the north and south.  The chest in the north chamber has a G&T, the chest in the south is the boss, the Chimera.
The chimera is easy if you're about 8-9th level when you fight it.  The only thing to bear in mind is that it regains about 250 HP every couple rounds.  Other than that, your regular attacks should be sufficient to defeat it.

Chapter 6:
This chapter leaves you in control of STD once again.  This time, the dungeon is even simpler, though there are twice as many floors, and the enemies are considerably tougher.
Don't bother with exploring the first two floors, because there's no treasure and the monsters aren't worth your time.
Third floor, on the other hand, is an excellent training ground to build up some levels for the battle ahead.
Fourth floor is two chambers linked together by a somewhat short corridor.  Right before you enter the second chamber be sure to heal up, because you're going to fight a much tougher version of the Deathknight you fought in chapter 1.
The only way to beat this deathknight is with the Danse Macabre, Devastate, and Frantic abilities.  If you don't have them by the time you reach the boss, you'll be in BIG trouble.

Chapter 7:
This chapter reintroduces you to Wiggs and Vedge, and drops you in the middle of a town consisting of a shop, an inn, and a sanctuary.  Once you leave town, look to the Northwest, and you'll see a black tower.  Head directly there.
Once inside you'll be back with familiar company, the advanced monsters from chapter 7.  Like with chapter 7, rush the first two floors, and feel free to take your time with the third floor.  As soon as you reach the fourth floor, heal, because the lead-up to the boss fight is right in between the two chambers that make up this floor.
Once again, you face off against the stoner dragon, and once again, he's not really difficult.  Just keep hitting him until he croaks.

Chapter 8:
This chapter starts in another town.  There's not much to do besides buy some stuff from the item shop and save at the Inn.
After leaving town, head to the tower in the northwest.
The White tower is an easy dungeon if you can find a way out of the first part of the first floor.  There's a crumbling wall near the southeastern corner of the room with the way out and the save spot.
The second and third floor are a breeze, though.  Don't worry about a boss either.  When you open the chest on the third floor, there's a storyteller finishing this chapter and starting the next.

Chapter 9:
This chapter starts in the foggy town of York.  As usual, feel free to look around and buy some G&T's and save.
The goal of this chapter is a warp pad to the east of York.  Follow the edge of the lake to the east until you come to a forrest area.  The pad is a bit hard to find because of its small size, but you know you're close when you see an island with a town on it surrounded by another lake.  The warp pad is along the shore of the surrounding lake.
The pad warps you to the island.
Talk to the girl inside the house to finish this chapter.

Chapter 10:
In this chapter SHNG gets a partner, and must sneak past several amazons.  The file marked "Big Momma's Tower" is the map of this dungeon.
Once you've disposed of the last amazon, heal, because you are soon to face Metal Gear D.
Metal Gear is almost indestructible (Thanks to those folks at Enterbrain and Agetec who forgot to include Stinger missiles in RPGM3 ;)).  You have two choices, level up like crazy, or attack it with standard attacks and hope for an instant death attack.

Chapter 11:
You're in a mostly deserted town when you start this chapter.
Once you leave town head directly north to the town there, called Cig's house.
Talk to the man in the town to finish the chapter.

Chapter 12:
This chapter starts in the town of Sias.  There's little to do here, so as soon as you've supplied yourself and saved, head out.
You should be able to see your destination, the black tower, from the town.  While there, don't be bashful about building some levels up.  You'll need them at the top of the tower.
Once inside the tower, save and begin your ascent.  Each floor is simple, with two chambers connected by a winding corridor.  The fourth floor is where you meet the bosses of this dungeon, Viktor and Zebas.
Viktor and Zebas are extremely difficult.  You may not want to deal with them until you're at least level 15.  Zebas must die first, because the majority of his attacks can do over 100 damage.  That's the easy part.  Viktor has 800 hit points, and regular attacks generally do 0-1 damage.  Use Vassago's Brutal slash and whatever Lejes has to take him down fast.  His average special attack does about 40-50 damage, but his regular attack does more than 750.

Chapter 13:
This chapter starts in Highland Castle.  Be sure to heal, save, equip the HK Bongs, and resupply before going to see the king.  After talking to him, a series of battles start.  Once you defeat the boss, Lord Vollyball (One of the easiest bosses in the game), the chapter ends.

Chapter 14:
This chapter is another dungeon crawl, starring Gordan Tr33m4nn.  Your character is the slowest in the game, but the dungeon is fairly small and simple for a 5-level dungeon.  Just make your way down, building up a level or two on each level.  If you're level 8-9 by the time you reach the knight on level five, then you should be able to handle the boss, which you meet when you talk to the knight.
The Balrog is a fairly easy opponent, just so long as you keep your health up between his attacks.

Chapter 15:
This is the final chapter.  You take control of STD one last time and must travel to the bottom of the dungeon.  The monsters are just as tough as the ones you fought in chapter 6.  This is a simple 3-level dungeon.  The treasure chests contain the party's ultimate weapons. 
Once you reach the final chamber with General Ova, heal, use the save spot, and talk to him.He will give you four options.  Choosing to fight Valkysas means eternal bannination, but other than that, the game ends whether you beat him or not.  Jack Thompson is the easiest boss in the game, hit him once and he goes down.  The devil is the hardest boss in the game (Other than Valk, but you win either way with Valk).  The Fearsome 4 is Viktor, Vassago, Lejes, and Zebas.