Visit the site and click on the cert of registration button. Look at the emblem on the top, it is not the official emblem of Costa Rica, no Spanish on the cert, and look at the font of the registration number. The rate of return is 200% in 14 days! It is an obvious scam.

If you enter this contest and win the prize money, you are taking money from another scammed bitcoin user. Think about this and do the right thing.