Hint: Coatal:
Breed a Sky Dragon (pedigree) and a Mad Knight.

Hint: Darkdrium:
Breed a Deathmore transformed that knows Ultradown (as the pedigree) with a Mudou that knows Poisonair. That should create a Deathmore final form. Have it learn Demagic Bigbang and Focus. Then, mate it with a Watabou that knows Imitate and Chance. This will create Darkdrium that can learn Thordain.

Hint: Dracolord (transformed):
Breed a Dracolord with a Divinegon.

Hint: Dragonlord:
Breed a Servant and a Greatdrak. Note: Make sure that the Servant is the pedigree.

Hint: Durran:
Breed a Gold Golem with a Centasaur (either can be pedigree).

Hint: Goldslime:
Breed a GoldGolem with a Kingslime or Metalking.

Hint: GreatDrak:
Breed a Unicorn with any Dragon.

Hint: Metalking:
Breed a Kingslime with a Metaldrak or Metable with a Metable.

Hint: Rainhawk:
Breed a Phoenix with a Blizzardy.

Hint: SkyDragon:
Stand under the SkyDragon above the farm before clearing C class.

Hint: StoneMan:
Talk to May in the restaurant after clearing A class.

Hint: Slime (Slio):
Talk to him in the farm after clearing S class.

Hint: Unicorn:
Breed a Fangslime with any beast.

Hint: Watabou:
After completing all the Gates, (regular and hidden), talk to him in the farm stables.

Hint: Whiteking:
Breed a Skelator with a Zapbird.

Breed a Skeletor and a Blizzardy.

Hint: Clone monsters:
If you have a rare monster, such as a Watabou, get a friend to trade with you. Make your rare monster (for example, Watabou) the pedigree, then make the second monster the same type as the Pedigree (for example, a Grass Monster). When they breed you will both get the rare monster, +1 and you will be able to choose what sex you want it to be.

Hint: Breeding opportunities:
Catfly, the fighter in the resturante, after E class/before clearing the gate of anger.
Iceman, Teto, after E class/before clearing the gate of anger.
Lizardman, Mick, after E class/before D class.
Deadnite, Mick, after D class/before clearing the gate of anger.
Eyder, Teto, after C class/before A class.
Rayburn, May, after clearing the gate of anger/before the A class.
Fangslime, MedalMan, after clearing the gate of anger/before the S class.
Yeti, Teto, after A class/before clearing the gate of reflection.
Metaly, MedalMan, after S class/before clearing the starry night tournament.?
Skeletor, Milayou, after clearing the starry night tournament.

Hint: Gates:
Once you win the tournament and open up the extra gates, each one will contain specific monster families except material and ???? family. Ambition gate has most of the bug family, Demolition gate has most of the plant family, Mastermind gate has most of the bird family, Control gate has slimes, Extinction gate has devils, and Sleep gate has zombies.

Hint: Coliseum:
Once you have completed the game and re-entered Greattree, you can go to the Travelers gates that were not accessible earlier in the cave. While competing in the coliseum, after each battle except the first, you will be offered a prize and the chance to continue.

Hint: Finding Darkhorn:
To find Darkhorn in the Labyrinth Gate, move up, up, up, left, down, down, left.

Hint: Battling Sky Dragon:
When battling Sky Dragon in the Gate Of Wisdom, tiptoe so you do not scare him.

Hint: Get Servant to join you:
Give him a Sirloin, then give him a Rib and he should join you.

Hint: Warp hole pattern:
Look very closely at the warp holes to see a swastika shape.

Hint: Extra money:
When you get items such as Fire, Mist, Snow, etc. Staffs, sell them in shops out in Gates. You will get up to ten times the amount of money compared to the normal shops. For example, a Snow Staff will sell for 4,000G instead of 400G.