Mystic Ark/The Ark of Fire

Colorless area
Turn a Bonehead skeleton into a figurine, and bring it to the monster arena. There, exchange it for a Skull axe, a good weapon for Miriene the Witch.

Keepensign
Get Edison's heart and bring it to the main hall of the shrine island. Get Edison's figurine and bring it back to Keepensign.

In the bar, talk to the bar patrons to start a fight; but if you play the piano, they will relax and talk. Help the barkeep, and you'll get a bottle of gold wine, that allows access to Capone's Fort.


 * Trivia: The painter in town is named after Vincent [van Gogh].

Dungeon: Bottomless pit
From Keepensign, travel nort-west. In Capone's Fort, you'll drop in a pit trap. In the bottomless pit below, you'll find Graham's heart.

BOSS: Metal Crab
Use any battle item you found so far.

Capone's Fort
On the upper floor of the fort, examine a floor tile that is different (it's near the east wall); use the deck brush to reveal a secret passage. On the upper floor again, get Rona's heart. Bring the two hearts to the shrine island and get the corresponding figurines.

Dungeon: Snowgate Pass
At the top of Snowgate Pass, all color comes back, but all sound vanish.

Duplo
Talk to a woman in the north-east houses to learn the sign language. Then, the weapons merchant twlls you he would like some help at the shop. Walk back to Keepensign and talk to Graham: he will be happy to become a weapons merchant.
 * Trivia: some people in Duplo are named after famous musicians: Frederick [Chopin], Wolfgang [Mozart], Ludwig [van Beethoven].

Bell Forest
Pablo ([Picasso]) asks you to move some bells. As you do so, you find an underground passage that connects to the next area.

Ratwood
Ratwood is straight east of the tunnel. Marylin ([Monroe?]) welcomes you in town. In the weapon shop, you can challenge the weaponsmith in a fight. Afterwards, if you give him the black iron (from the cats world) and some beech sap, and he will start making a strong sword.

Talk to Einstein, then bring a letter to Edison. Together, they will need some "bellanite" (metal to make bells) and some beech sap to fix the machine.

Beech Forest
Bellanite can be found, quite obviously, in Bell Forest. Continue to the north-east of the soundless area and get two jars of beech sap: one for the weaponsmith, one for the scientists.

Dungeon: Metalimo corridor
Once the machine in Ratwood is fixed and you infused the Light Ark in it, it will open: it is an elevator. The air downstairs is poisoned: walk back and buy three antidotes (Ferris and Meisia can also learn the Cure spell).

Metalimo
Talk to the people in Metalimo and start unravel the anomalies on the surface.

Dungeon: Junkyard
Turn a medusa into a figurine: she will be a very strong monster for the arena.

BOSS: Death Knights
Use all the combat items in this battle.

Hydro Area City
The Synthesis Machine allows to turn useless items into new items. At this point of the game, you should have four useless items that can be used in the machine. Later, you will find more plot items that can be used to obtain relevant items. Add either a liquid or a magic item to turn these into another item.
 * Junk & deck brush — Deck Brush weapon (for the Priestess)
 * Bottle of candies — Full Metal Jacket (for the Tetsujin)
 * Scrap of paper — Mirrored shield (for the Hero, Ninja and Ogre)

Note that, in order to get the deck brush weapon, you must insert first the junk, then the deck brush item, and only afterwards the liquid/magic item. For the other items, any order will do.

Any other combination of two items (Solid&Liquid, Liquid&Magic, Magic&Solid) will turn into one of three items that can be purchased in shops.

Dungeon: Hydro Cell
NOTE: When you collect the Ark, all monsters disappear from the surface (including Bottomless Pit and Snowgate Pass). Make sure you collected the all the figurines you need.

Aftermath
Go back to Ratwood and collect a strong sword from the weaponsmith.

All monsters disappear from the surface, you can only collect figurines in the underground and in the Hydro Area.

The Fire Ark
Infuse the Fire Ark into a weapon to make it stronger.

Monsters & arena
The strongest monsters right now are all at Lv. 24: Medusa, Tetsujin M003 and Tetsuujin M004. Avoid pitting any of your monsters against the other two, the odds of winning are very slim, and you could lose your figurine.