you build them by finding fossils.
the yellow dots on your lower screen radar are the fossils and you either have to dive or swim up on the dot to find them. some of them needs special monsters to find them eg. Temnodontosaur to do deep dives, and Hendodus to dig etc.
figure it out your self
Get all of the Pteranodon fossils. You get those the same way as normal fossils. Missions and exploring and such.
you turn into a turtle like monster, get close to the spot and hit the b button for wii.
I would look on a cheat sheet. They have them online, type in "Sea Montser Cheats" and see what pops up. If that doesn't work try to find a walkthrough.
The Sea of Monsters was published in 2006.
unlock megalodon tooth fossil bc it's stronger and bigger and more feared than tylosaour.
You have to click the two arch buttons on the bottom left touch screen to dig.
he is not the sea of monsters. seas of monsters is a place and he goes their to save his camp
Sea of monsters is coming out on 4/12/12
Percy is 13 in the Sea of Monsters.