Four breeds are locked at the start of the game: Durahan, Hengar, Joker, Maya.

Sub-breeds, however, are not locked from the beginning.

Beaklon Available from the start of the game.

Dragon Available from the start of the game.

Ducken Available from the start of the game.

Durahan Available after you finish the adventure in Campana, just before moving to Tongue Bool, when Nayuta speaks with Lambert about his experience raising Durahan monsters.

Garu Available from the start of the game.

Gitan Available from the start of the game.

Golem Available from the start of the game.

Hare Available from the start of the game.

Hengar Go to the factory on the second adventure (after the Devil's Forest) and you can raise them after you find the dead Henger's head.

Jell Available from the start of the game.

Joker Released after you get to Congaconga. Nayuta has picked up a piece of the mask from the "boss" fight in the temple and learns how to release them from that.

Lesione Available from the start of the game.

Maya Available after the Battle in Grabad with Dotty and Petty and Nayuta looks at Tico's crystal flower from his mom. Can also be unlocked after your first show in chapter 2.

Mew Available from the start of the game.

Mocchi Available from the start of the game.

Naga Available from the start of the game.

Pancho Available from the start of the game.

Piroro Available from the start of the game.

Pixie Available from the start of the game.

Plant Available from the start of the game.

Raiden Available from the start of the game.

Ripper Available from the start of the game.

Suezo Available from the start of the game.

Tiger Available from the start of the game.

Zan Available from the start of the game.