How do you get all of the monsters on Godzilla unleashed

There are cheat codes for Godzilla Unleashed. That is probably the easiest way to do it. Also, you can beat story mode as Godzilla to unlock all monsters. The cheat code is to unlock 90,000 store points. Once you raise enough money to buy all the monsters, buy them. They will be available in both story and brawl modes. The cheat is go to the main menu, (story,brawl etc.),and press x + up. It might take a few times, then input the code, 031406. Keep doing this continuously to raise money, then buy them.